foo.py

import itertools


def xprf(l):
    return l[0] + 13*float(l[1])/float(l[2]) + l[3] + 12*l[4] - l[5] - 11 + float(l[6])*float(l[7])/float(l[8]) - 10


def xpri(l):
    if l[1] % l[2] != 0:
        return -1
    if l[6] % l[8] != 0 and l[7] % l[8] != 0:
        return -1
    return l[0] + 13*l[1]/l[2] + l[3] + 12*l[4] - l[5] - 11 + l[6]*l[7]/l[8] - 10


def solve():
    for p in itertools.permutations(range(1, 10)):
        if xpri(p) == 66:
            print(p)
            yield p


print(len(list(solve())))
#print(xpri((5, 3, 1, 7, 2, 6, 9, 8, 4)))
#print(xprf((8, 5, 2, 7, 4, 9, 1, 3, 6)))