File 1:-
155369268 17 A 
155369268 70 G
269212605 75 T

File 2:-
>gi|155369268|ref|NM_001100917.1| some text
AAACAATGTCGATTCTATGATGCGAACGCAGCATTTCAGGGACTGGAATGGGAGCTTACGGTTTTTTACG
ACAGAATCATCAATATCTTGGAAGAAAAAGAATGTTAAGAAATAACAAAACAATAATTATTAAGTACTTT
>gi|269212605|ref|XM_401716884.1| some text 
AGACAAGCTTGTCCTGATGTTCCTTGCCCTGGCAGATGTTCAGGACCTTCCTTTGATTCAACCCTATGAC
CTAATTGGCCCAAGCTTTCGGGGCTGTCATTGTCTGTTTGTCATTCAAGGGCCCAAGCTGAAGAGGGGGT