diff --git a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/dataflow/MapReadToNodeOperator.java b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/dataflow/MapReadToNodeOperator.java
index 3e42d0b..a775d7e 100644
--- a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/dataflow/MapReadToNodeOperator.java
+++ b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/dataflow/MapReadToNodeOperator.java
@@ -80,7 +80,7 @@
             nextNodeEntry = new NodeReference(kmerSize);
             nextNextNodeEntry = new NodeReference(0);
             cachePositionList = new PositionListWritable();
-            LAST_POSITION_ID = inputRecDesc.getFieldCount() - InputInfoFieldStart;
+            LAST_POSITION_ID = (inputRecDesc.getFieldCount() - InputInfoFieldStart) / 2;
         }
 
         @Override
@@ -119,47 +119,45 @@
                 setReverseIncomingList(curNodeEntry,
                         offsetPoslist + accessor.getFieldStartOffset(tIndex, InputInfoFieldStart + 1));
             }
-            for (int i = InputInfoFieldStart + 2; i < accessor.getFieldCount(); i += 2) {
-                // next Node
-                if (i + 2 < accessor.getFieldCount()) {
-                    setForwardOutgoingList(curNodeEntry, offsetPoslist + accessor.getFieldStartOffset(tIndex, i + 2));
-                    resetNode(nextNodeEntry, readID, (byte) (1 + (i - InputInfoFieldStart) / 2));
-                    setKmer(nextNodeEntry.getKmer(), offsetPoslist + accessor.getFieldStartOffset(tIndex, i + 2));
-                    setReverseOutgoingList(nextNodeEntry, offsetPoslist + accessor.getFieldStartOffset(tIndex, i + 1));
-                    if (nextNodeEntry.getNodeID().getPosInRead() == LAST_POSITION_ID) {
-                        setReverseIncomingList(nextNodeEntry,
-                                offsetPoslist + accessor.getFieldStartOffset(tIndex, i + 3));
-                    }
-                } else {
-                    resetNode(nextNodeEntry, readID, (byte) 0);
-                }
-                // nextNext node
-                if (i + 4 < accessor.getFieldCount()) {
-                    setForwardOutgoingList(nextNodeEntry, offsetPoslist + accessor.getFieldStartOffset(tIndex, i + 4));
-                    resetNode(nextNextNodeEntry, readID, (byte) (2 + (i - InputInfoFieldStart) / 2));
-                    setReverseOutgoingList(nextNextNodeEntry,
-                            offsetPoslist + accessor.getFieldStartOffset(tIndex, i + 3));
-                    if (nextNextNodeEntry.getNodeID().getPosInRead() == LAST_POSITION_ID) {
-                        setReverseIncomingList(nextNextNodeEntry,
-                                offsetPoslist + accessor.getFieldStartOffset(tIndex, i + 5));
-                    }
-                } else {
-                    resetNode(nextNextNodeEntry, readID, (byte) 0);
-                }
 
-                if (curNodeEntry.inDegree() > 1 || curNodeEntry.outDegree() > 1 || nextNodeEntry.inDegree() > 1
-                        || nextNodeEntry.outDegree() > 1 || nextNextNodeEntry.inDegree() > 1
-                        || nextNextNodeEntry.outDegree() > 1) {
+            // next Node
+            readNodesInfo(tIndex, readID, curNodeEntry, nextNodeEntry, InputInfoFieldStart);
+
+            for (int i = InputInfoFieldStart + 2; i < accessor.getFieldCount(); i += 2) {
+                readNodesInfo(tIndex, readID, nextNodeEntry, nextNextNodeEntry, i);
+
+                if (curNodeEntry.inDegree() > 1 || curNodeEntry.outDegree() > 0 || nextNodeEntry.inDegree() > 0
+                        || nextNodeEntry.outDegree() > 0 || nextNextNodeEntry.inDegree() > 0
+                        || nextNextNodeEntry.outDegree() > 0) {
                     connect(curNodeEntry, nextNodeEntry);
                     outputNode(curNodeEntry);
                     curNodeEntry.set(nextNodeEntry);
+                    nextNodeEntry.set(nextNextNodeEntry);
                     continue;
                 }
                 curNodeEntry.mergeForwadNext(nextNodeEntry, kmerSize);
+                nextNodeEntry.set(nextNextNodeEntry);
             }
             outputNode(curNodeEntry);
         }
 
+        private void readNodesInfo(int tIndex, int readID, NodeReference curNode, NodeReference nextNode, int curFieldID) {
+            // nextNext node
+            int offsetPoslist = accessor.getTupleStartOffset(tIndex) + accessor.getFieldSlotsLength();
+            if (curFieldID + 2 < accessor.getFieldCount()) {
+                setForwardOutgoingList(curNode, offsetPoslist + accessor.getFieldStartOffset(tIndex, curFieldID + 2));
+                resetNode(nextNode, readID, (byte) (1 + (curFieldID + 2 - InputInfoFieldStart) / 2));
+                setKmer(nextNode.getKmer(), offsetPoslist + accessor.getFieldStartOffset(tIndex, curFieldID + 2));
+                setReverseOutgoingList(nextNode, offsetPoslist + accessor.getFieldStartOffset(tIndex, curFieldID + 1));
+                if (nextNode.getNodeID().getPosInRead() == LAST_POSITION_ID) {
+                    setReverseIncomingList(nextNode,
+                            offsetPoslist + accessor.getFieldStartOffset(tIndex, curFieldID + 3));
+                }
+            } else {
+                resetNode(nextNode, readID, (byte) 0);
+            }
+        }
+
         private void setKmer(KmerBytesWritable kmer, int offset) {
             ByteBuffer buffer = accessor.getBuffer();
             int length = buffer.getInt(offset);
diff --git a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/job/JobGenGroupbyReadID.java b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/job/JobGenGroupbyReadID.java
index 06fcd8e..201be03 100644
--- a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/job/JobGenGroupbyReadID.java
+++ b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/job/JobGenGroupbyReadID.java
@@ -99,19 +99,27 @@
                                             plist.setNewReference(posCount, buffer, fieldOffset);
                                             fieldOffset += plist.getLength();
 
-                                            int kmerbytes = Marshal.getInt(buffer, fieldOffset);
-                                            if (kmer.getLength() != kmerbytes) {
-                                                throw new IllegalArgumentException("kmerlength is invalid");
+                                            int posInRead = (i + 1) / 2;
+                                            if (i % 2 == 0) {
+                                                posInRead = -posInRead;
                                             }
-                                            fieldOffset += 4;
-                                            kmer.setNewReference(buffer, fieldOffset);
-                                            fieldOffset += kmer.getLength();
+                                            String kmerString = "";
+                                            if (posInRead > 0) {
+                                                int kmerbytes = Marshal.getInt(buffer, fieldOffset);
+                                                if (kmer.getLength() != kmerbytes) {
+                                                    throw new IllegalArgumentException("kmerlength is invalid");
+                                                }
+                                                fieldOffset += 4;
+                                                kmer.setNewReference(buffer, fieldOffset);
+                                                fieldOffset += kmer.getLength();
+                                                kmerString = kmer.toString();
+                                            }
 
-                                            output.write(Integer.toString(i - 1).getBytes());
-                                            output.writeByte(' ');
+                                            output.write(Integer.toString(posInRead).getBytes());
+                                            output.writeByte('\t');
                                             output.write(plist.toString().getBytes());
-                                            output.writeByte(' ');
-                                            output.write(kmer.toString().getBytes());
+                                            output.writeByte('\t');
+                                            output.write(kmerString.getBytes());
                                             output.writeByte('\t');
                                         }
                                     }
diff --git a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/job/JobGenMapKmerToRead.java b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/job/JobGenMapKmerToRead.java
index c399603..968123e 100644
--- a/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/job/JobGenMapKmerToRead.java
+++ b/genomix/genomix-hyracks/src/main/java/edu/uci/ics/genomix/hyracks/job/JobGenMapKmerToRead.java
@@ -76,13 +76,17 @@
                                             tuple.getFieldData(MapKmerPositionToReadOperator.OutputOtherReadIDListField),
                                             tuple.getFieldStart(MapKmerPositionToReadOperator.OutputOtherReadIDListField));
 
-                                    if (kmer.getLength() > tuple
-                                            .getFieldLength(ReadsKeyValueParserFactory.OutputKmerField)) {
-                                        throw new IllegalArgumentException("Not enough kmer bytes");
+                                    String kmerString = "";
+                                    if (posInRead > 0) {
+                                        if (kmer.getLength() > tuple
+                                                .getFieldLength(ReadsKeyValueParserFactory.OutputKmerField)) {
+                                            throw new IllegalArgumentException("Not enough kmer bytes");
+                                        }
+                                        kmer.setNewReference(
+                                                tuple.getFieldData(MapKmerPositionToReadOperator.OutputKmerField),
+                                                tuple.getFieldStart(MapKmerPositionToReadOperator.OutputKmerField));
+                                        kmerString = kmer.toString();
                                     }
-                                    kmer.setNewReference(
-                                            tuple.getFieldData(MapKmerPositionToReadOperator.OutputKmerField),
-                                            tuple.getFieldStart(MapKmerPositionToReadOperator.OutputKmerField));
 
                                     output.write(Integer.toString(readID).getBytes());
                                     output.writeByte('\t');
@@ -90,7 +94,7 @@
                                     output.writeByte('\t');
                                     output.write(plist.toString().getBytes());
                                     output.writeByte('\t');
-                                    output.write(kmer.toString().getBytes());
+                                    output.write(kmerString.getBytes());
                                     output.writeByte('\n');
                                 } catch (IOException e) {
                                     throw new HyracksDataException(e);
diff --git a/genomix/genomix-hyracks/src/test/java/edu/uci/ics/genomix/hyracks/test/JobRunStepByStepTest.java b/genomix/genomix-hyracks/src/test/java/edu/uci/ics/genomix/hyracks/test/JobRunStepByStepTest.java
index 58331b8..68258d7 100644
--- a/genomix/genomix-hyracks/src/test/java/edu/uci/ics/genomix/hyracks/test/JobRunStepByStepTest.java
+++ b/genomix/genomix-hyracks/src/test/java/edu/uci/ics/genomix/hyracks/test/JobRunStepByStepTest.java
@@ -59,11 +59,11 @@
 
     @Test
     public void TestAll() throws Exception {
-        TestReader();
+//        TestReader();
 //        TestGroupbyKmer();
 //        TestMapKmerToRead();
 //        TestGroupByReadID();
-//        TestEndToEnd();
+        TestEndToEnd();
     }
 
     public void TestReader() throws Exception {
@@ -93,7 +93,7 @@
         conf.set(GenomixJobConf.OUTPUT_FORMAT, GenomixJobConf.OUTPUT_FORMAT_TEXT);
         conf.set(GenomixJobConf.GROUPBY_TYPE, GenomixJobConf.GROUPBY_TYPE_PRECLUSTER);
         driver.runJob(new GenomixJobConf(conf), Plan.OUTPUT_GROUPBY_READID, true);
-        Assert.assertEquals(true, checkResults(EXPECTED_GROUPBYREADID, new int [] {2}));
+        Assert.assertEquals(true, checkResults(EXPECTED_GROUPBYREADID, new int [] {2,5,8,11,14,17,20,23}));
     }
 
     public void TestEndToEnd() throws Exception {
@@ -101,7 +101,7 @@
         cleanUpReEntry();
         conf.set(GenomixJobConf.GROUPBY_TYPE, GenomixJobConf.GROUPBY_TYPE_PRECLUSTER);
         driver.runJob(new GenomixJobConf(conf), Plan.BUILD_DEBRUJIN_GRAPH, true);
-        Assert.assertEquals(true, checkResults(EXPECTED_OUPUT_NODE, new int[] {1,2}));
+        Assert.assertEquals(true, checkResults(EXPECTED_OUPUT_NODE, new int[] {1,2,3,4}));
     }
 
     @Before
diff --git a/genomix/genomix-hyracks/src/test/resources/expected/result_after_generateNode b/genomix/genomix-hyracks/src/test/resources/expected/result_after_generateNode
index 2988303..9334b95 100644
--- a/genomix/genomix-hyracks/src/test/resources/expected/result_after_generateNode
+++ b/genomix/genomix-hyracks/src/test/resources/expected/result_after_generateNode
@@ -1,16 +1,14 @@
-((1,0)	[]	[(1,2)]	AATAGA)
-((1,2)	[(1,0)]	[(6,0),(1,3)]	TAGAA)
-((1,3)	[(1,2)]	[]	AGAAG)
-((2,0)	[]	[(2,2)]	AATAGA)
-((2,2)	[(2,0)]	[(6,0),(2,3)]	TAGAA)
-((2,3)	[(2,2)]	[]	AGAAG)
-((3,0)	[]	[(3,2)]	AATAGA)
-((3,2)	[(3,0)]	[(6,0),(3,3)]	TAGAA)
-((3,3)	[(3,2)]	[]	AGAAG)
-((4,0)	[]	[(4,2)]	AATAGA)
-((4,2)	[(4,0)]	[(6,0),(4,3)]	TAGAA)
-((4,3)	[(4,2)]	[]	AGAAG)
-((5,0)	[]	[(5,2)]	AATAGA)
-((5,2)	[(5,0)]	[(6,0),(5,3)]	TAGAA)
-((5,3)	[(5,2)]	[]	AGAAG)
-((6,0)	[(1,2),(2,2),(3,2),(5,2),(4,2)]	[]	AGAAGAAG)
+((1,1)	[(1,3)]	[]	[]	[]	AATAGA)
+((1,3)	[(6,1),(1,4)]	[]	[]	[(1,1)]	TAGAA)
+((1,4)	[(6,2)]	[]	[]	[(1,3)]	AGAAG)
+((2,1)	[]	[]	[]	[]	AATAGCTT)
+((3,1)	[(3,3)]	[]	[]	[]	AATAGA)
+((3,3)	[(6,1),(3,4)]	[]	[]	[(3,1)]	TAGAA)
+((3,4)	[(6,2)]	[]	[]	[(3,3)]	AGAAG)
+((4,1)	[]	[]	[]	[]	AATAGCTT)
+((5,1)	[(5,3)]	[]	[]	[]	AATAGA)
+((5,3)	[(6,1),(5,4)]	[]	[]	[(5,1)]	TAGAA)
+((5,4)	[(6,2)]	[]	[]	[(5,3)]	AGAAG)
+((6,1)	[(6,2)]	[]	[]	[(5,3),(3,3),(1,3)]	AGAAG)
+((6,2)	[(6,3)]	[]	[]	[(1,4),(3,4),(5,4),(6,1)]	GAAGA)
+((6,3)	[]	[]	[]	[(6,2)]	AAGAAG)
diff --git a/genomix/genomix-hyracks/src/test/resources/expected/result_after_initial_read b/genomix/genomix-hyracks/src/test/resources/expected/result_after_initial_read
index 1091d2e..3502e95 100644
--- a/genomix/genomix-hyracks/src/test/resources/expected/result_after_initial_read
+++ b/genomix/genomix-hyracks/src/test/resources/expected/result_after_initial_read
@@ -1,24 +1,48 @@
-AAGAA	(6,2)
-AATAG	(1,0)
-AATAG	(2,0)
-AATAG	(3,0)
-AATAG	(4,0)
-AATAG	(5,0)
-AGAAG	(1,3)
-AGAAG	(2,3)
-AGAAG	(3,3)
-AGAAG	(4,3)
-AGAAG	(5,3)
-AGAAG	(6,0)
-AGAAG	(6,3)
-ATAGA	(1,1)
-ATAGA	(2,1)
-ATAGA	(3,1)
-ATAGA	(4,1)
-ATAGA	(5,1)
-GAAGA	(6,1)
-TAGAA	(1,2)
-TAGAA	(2,2)
-TAGAA	(3,2)
-TAGAA	(4,2)
-TAGAA	(5,2)
+AAGAA	(6,3)
+AAGCT	(2,-4)
+AAGCT	(4,-4)
+AATAG	(1,1)
+AATAG	(2,1)
+AATAG	(3,1)
+AATAG	(4,1)
+AATAG	(5,1)
+AGAAG	(1,4)
+AGAAG	(3,4)
+AGAAG	(5,4)
+AGAAG	(6,1)
+AGAAG	(6,4)
+AGCTA	(2,-3)
+AGCTA	(4,-3)
+AGCTT	(2,4)
+AGCTT	(4,4)
+ATAGA	(1,2)
+ATAGA	(3,2)
+ATAGA	(5,2)
+ATAGC	(2,2)
+ATAGC	(4,2)
+CTATT	(1,-1)
+CTATT	(2,-1)
+CTATT	(3,-1)
+CTATT	(4,-1)
+CTATT	(5,-1)
+CTTCT	(1,-4)
+CTTCT	(3,-4)
+CTTCT	(5,-4)
+CTTCT	(6,-1)
+CTTCT	(6,-4)
+GAAGA	(6,2)
+GCTAT	(2,-2)
+GCTAT	(4,-2)
+TAGAA	(1,3)
+TAGAA	(3,3)
+TAGAA	(5,3)
+TAGCT	(2,3)
+TAGCT	(4,3)
+TCTAT	(1,-2)
+TCTAT	(3,-2)
+TCTAT	(5,-2)
+TCTTC	(6,-2)
+TTCTA	(1,-3)
+TTCTA	(3,-3)
+TTCTA	(5,-3)
+TTCTT	(6,-3)
diff --git a/genomix/genomix-hyracks/src/test/resources/expected/result_after_kmer2readId b/genomix/genomix-hyracks/src/test/resources/expected/result_after_kmer2readId
index 2585102..b52a848 100644
--- a/genomix/genomix-hyracks/src/test/resources/expected/result_after_kmer2readId
+++ b/genomix/genomix-hyracks/src/test/resources/expected/result_after_kmer2readId
@@ -1,24 +1,48 @@
-1	0	[]	AATAG
-1	1	[]	ATAGA
-1	2	[]	TAGAA
-1	3	[(6,0)]	AGAAG
-2	0	[]	AATAG
-2	1	[]	ATAGA
-2	2	[]	TAGAA
-2	3	[(6,0)]	AGAAG
-3	0	[]	AATAG
-3	1	[]	ATAGA
-3	2	[]	TAGAA
-3	3	[(6,0)]	AGAAG
-4	0	[]	AATAG
-4	1	[]	ATAGA
-4	2	[]	TAGAA
-4	3	[(6,0)]	AGAAG
-5	0	[]	AATAG
-5	1	[]	ATAGA
-5	2	[]	TAGAA
-5	3	[(6,0)]	AGAAG
-6	0	[(1,3),(2,3),(3,3),(5,3),(4,3)]	AGAAG
-6	1	[]	GAAGA
-6	2	[]	AAGAA
-6	3	[]	AGAAG
+1	-1	[]	
+1	-2	[]	
+1	-3	[]
+1	-4	[(6,-1)]	
+1	1	[]	AATAG
+1	2	[]	ATAGA
+1	3	[]	TAGAA
+1	4	[(6,1)]	AGAAG
+2	-1	[]	
+2	-2	[]	
+2	-3	[]	
+2	-4	[]	
+2	1	[]	AATAG
+2	2	[]	ATAGC
+2	3	[]	TAGCT
+2	4	[]	AGCTT
+3	-1	[]	
+3	-2	[]	
+3	-3	[]
+3	-4	[(6,-1)]	
+3	1	[]	AATAG
+3	2	[]	ATAGA
+3	3	[]	TAGAA
+3	4	[(6,1)]	AGAAG
+4	-1	[]	
+4	-2	[]	
+4	-3	[]	
+4	-4	[]	
+4	1	[]	AATAG
+4	2	[]	ATAGC
+4	3	[]	TAGCT
+4	4	[]	AGCTT
+5	-1	[]	
+5	-2	[]	
+5	-3	[]
+5	-4	[(6,-1)]	
+5	1	[]	AATAG
+5	2	[]	ATAGA
+5	3	[]	TAGAA
+5	4	[(6,1)]	AGAAG
+6	-1	[(1,-4),(3,-4),(5,-4)]	
+6	-2	[]
+6	-3	[]
+6	-4	[]	
+6	1	[(1,4),(3,4),(5,4)]	AGAAG
+6	2	[]	GAAGA
+6	3	[]	AAGAA
+6	4	[]	AGAAG
diff --git a/genomix/genomix-hyracks/src/test/resources/expected/result_after_kmerAggregate b/genomix/genomix-hyracks/src/test/resources/expected/result_after_kmerAggregate
index 499200a..9035f33 100644
--- a/genomix/genomix-hyracks/src/test/resources/expected/result_after_kmerAggregate
+++ b/genomix/genomix-hyracks/src/test/resources/expected/result_after_kmerAggregate
@@ -1,6 +1,18 @@
-AAGAA	[(6,2)]
-AATAG	[(1,0),(2,0),(3,0),(4,0),(5,0)]
-AGAAG	[(1,3),(2,3),(3,3),(4,3),(5,3),(6,0),(6,3)]
-ATAGA	[(1,1),(2,1),(3,1),(4,1),(5,1)]
-GAAGA	[(6,1)]
-TAGAA	[(1,2),(2,2),(3,2),(4,2),(5,2)]
\ No newline at end of file
+AAGAA	[(6,3)]
+AAGCT	[(2,-4),(4,-4)]
+AATAG	[(1,1),(2,1),(3,1),(4,1),(5,1)]
+AGAAG	[(1,4),(3,4),(5,4),(6,1),(6,4)]
+AGCTA	[(2,-3),(4,-3)]
+AGCTT	[(2,4),(4,4)]
+ATAGA	[(1,2),(3,2),(5,2)]
+ATAGC	[(2,2),(4,2)]
+CTATT	[(1,-1),(2,-1),(3,-1),(4,-1),(5,-1)]
+CTTCT	[(1,-4),(3,-4),(5,-4),(6,-1),(6,-4)]
+GAAGA	[(6,2)]
+GCTAT	[(2,-2),(4,-2)]
+TAGAA	[(1,3),(3,3),(5,3)]
+TAGCT	[(2,3),(4,3)]
+TCTAT	[(1,-2),(3,-2),(5,-2)]
+TCTTC	[(6,-2)]
+TTCTA	[(1,-3),(3,-3),(5,-3)]
+TTCTT	[(6,-3)]
diff --git a/genomix/genomix-hyracks/src/test/resources/expected/result_after_readIDAggreage b/genomix/genomix-hyracks/src/test/resources/expected/result_after_readIDAggreage
index 1cd4274..2cc283d 100644
--- a/genomix/genomix-hyracks/src/test/resources/expected/result_after_readIDAggreage
+++ b/genomix/genomix-hyracks/src/test/resources/expected/result_after_readIDAggreage
@@ -1,6 +1,6 @@
-1	0 [] AATAG	1 [] ATAGA	2 [] TAGAA	3 [(6,0)] AGAAG	
-2	0 [] AATAG	1 [] ATAGA	2 [] TAGAA	3 [(6,0)] AGAAG	
-3	0 [] AATAG	1 [] ATAGA	2 [] TAGAA	3 [(6,0)] AGAAG	
-4	0 [] AATAG	1 [] ATAGA	2 [] TAGAA	3 [(6,0)] AGAAG	
-5	0 [] AATAG	1 [] ATAGA	2 [] TAGAA	3 [(6,0)] AGAAG	
-6	0 [(1,3),(2,3),(3,3),(5,3),(4,3)] AGAAG	1 [] GAAGA	2 [] AAGAA	3 [] AGAAG	
+1	1	[]	AATAG	-1	[]		2	[]	ATAGA	-2	[]		3	[]	TAGAA	-3	[]		4	[(6,1)]	AGAAG	-4	[(6,-1)]		
+2	1	[]	AATAG	-1	[]		2	[]	ATAGC	-2	[]		3	[]	TAGCT	-3	[]		4	[]	AGCTT	-4	[]		
+3	1	[]	AATAG	-1	[]		2	[]	ATAGA	-2	[]		3	[]	TAGAA	-3	[]		4	[(6,1)]	AGAAG	-4	[(6,-1)]		
+4	1	[]	AATAG	-1	[]		2	[]	ATAGC	-2	[]		3	[]	TAGCT	-3	[]		4	[]	AGCTT	-4	[]		
+5	1	[]	AATAG	-1	[]		2	[]	ATAGA	-2	[]		3	[]	TAGAA	-3	[]		4	[(6,1)]	AGAAG	-4	[(6,-1)]		
+6	1	[(3,4),(1,4),(5,4)]	AGAAG	-1	[(1,-4),(3,-4),(5,-4)]		2	[]	GAAGA	-2	[]		3	[]	AAGAA	-3	[]		4	[]	AGAAG	-4	[]