P:\test>gf -MIN=16 duptest.gf
Completed in 0.000207
Best match: >string1 - >string2. 17 characters starting at 0 and 0.
123456789 123456789 123456789 123456789 123456789 123456789 123456789
AAAAAAAAAAAAAAAACCCCCCCCCCCCCCCCCCCCCCCCCCCCCCTTTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAC
AAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAG

P:\test>gf -MIN=8 duptest.gf
Completed in 0.000296
Best match: >string1 - >string2. 17 characters starting at 0 and 0.
123456789 123456789 123456789 123456789 123456789 123456789 123456789
AAAAAAAAAAAAAAAACCCCCCCCCCCCCCCCCCCCCCCCCCCCCCTTTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAC
AAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAG

P:\test>gf -MIN=4 duptest.gf
Completed in 0.000611
Best match: >string1 - >string2. 17 characters starting at 0 and 0.
123456789 123456789 123456789 123456789 123456789 123456789 123456789
AAAAAAAAAAAAAAAACCCCCCCCCCCCCCCCCCCCCCCCCCCCCCTTTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAC
AAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAG

P:\test>gf -MIN=2 duptest.gf
Completed in 0.000909
Best match: >string1 - >string2. 19 characters starting at 44 and 44.
123456789 123456789 123456789 123456789 123456789 123456789 123456789
AAAAAAAAAAAAAAAACCCCCCCCCCCCCCCCCCCCCCCCCCCCCCTTTTTTTTTTTTTTTTTT
............................................CCTTTTTTTTTTTTTTTTT
AAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGTTTTTTTTTTTTTTTTTT
............................................GGTTTTTTTTTTTTTTTTT