@CONVERTED_FROM_TEXT
@ITEM=1=A
@ITEM=3=C
@ITEM=7=G
@ITEM=20=T
@ITEM=-1=|
1 -1 1 -1 7 -1 20 -1 1 -1 3 -1 7 -1 1 -1 3 -1 7 -1 3 -1 1 -1 20 -1 3 -1 20 -1 1 -1 -2