P:\test>type duptest.gf
>string1
TTTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAA
>string2
AAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTT

P:\test>gf -MIN=16 duptest.gf
Completed in 0.00021
Best match: >string1 - >string2. 17 characters starting at 0 and 47.
123456789 123456789 123456789 123456789 123456789 123456789 123456789
TTTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAA
TTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTT
...............................................TTTTTTTTTTTTTTTTT

P:\test>type duptest.gf
>string1
AAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTT
>string2
TTTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAA

P:\test>gf -MIN=16 duptest.gf
Completed in 0.000209
Best match: >string1 - >string2. 17 characters starting at 0 and 47.
123456789 123456789 123456789 123456789 123456789 123456789 123456789
AAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAA
TTTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAA
...............................................AAAAAAAAAAAAAAAAA