>both
AAGAGCCCTTTCTCTCTCTCTCTTCTCGAAGGGCTCGTTTT
>nothing
TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
>first
AAAAAGAGCCCTTTCTCTCTCTCTCTCTGAGAGAGAGAGAG
>second
TTTCTCTCTCTCTTCTCTCGAAGGGCTCGTTTTGAGAGAGAG
>nothing2
GAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAG