read.txt
>s1
A G C T G G G G A C T T T A G C
>s2
A G C T G G G G A C T T T A G C
>s3
A G C T G G G G A C T T T A G C


and

num.txt is
>s1
34 23 43 45 34 43 45 7 45 43 12 34 32 56 43
>s2
34 23 43 45 34 43 45 7 45 43 12 34 32 56 43
>s3
34 23 43 45 34 43 45 7 45 43 12 34 32 56 43