cstutoringcenter.com_A Math Puzzle

def sam(*argv):
    l = list(argv)
    for x in argv:
        x = l.pop()
        if x in l:return True
    return False
sum = 0
sum2 = 0
for x1 in xrange(1, 10):
    for x2 in xrange(1, 10):
        if sam(x1,x2):continue
        for x3 in xrange(1, 10):
            if sam(x1,x2,x3):continue
            for x4 in xrange(1, 10):
                if sam(x1,x2,x3,x4):continue
                for x5 in xrange(1, 10):
                    if sam(x1,x2,x3,x4,x5):continue
                    for x6 in xrange(1, 10):
                        if sam(x1,x2,x3,x4,x5,x6):continue
                        for x7 in xrange(1, 10):
                            if sam(x1,x2,x3,x4,x5,x6,x7):continue
                            for x8 in xrange(1, 10):
                                if sam(x1,x2,x3,x4,x5,x6,x7,x8):continue
                                for x9 in xrange(1, 10):
                                    if sam(x1,x2,x3,x4,x5,x6,x7,x8,x9):continue
                                    if int(str(x1)+str(x2)+str(x3)+str(x4)+str(x5)) == 9 * int(str(x6)+str(x7)+str(x8)+str(x9)):
                                        sum2 += 1
print sum2