for i in range(len(in_stuff)):
    if isInside(in_stuff[i][0],in_stuff[i][1],in_stuff[i][2],in_stuff[i][3],in_stuff[i][4],in_stuff[i][5], in_stuff[i][6], in_stuff[i][7]):
        with open( *PLIK OUT* zależny od i ) as out:
            out.write('yes')
    else:
        with open( *PLIK OUT* zależny od i ) as out:
            out.write('no')