14.请将1~9这9个阿拉伯数字分别填入9个□中。每个数字只能使用一次。使得等式成立。
□□□+□□□=□□□
例如173+286=459就是一个合理的组合，请问一共所有少种合理的组合？
注意：173+286=459 与 286+173=459 是同一种组合！

#!usr/bin/env python
# -*- coding: utf-8 -*-

def is_same(num_1, num_2, freq):
    ''' Judge the elements of two numbers whether they are same or not!
        Different method of find same element  ---->ahalei_15
    '''
    for i in range(freq):
        for j in range(freq):
            if str(num_1)[i] == str(num_2)[j]:
                return True
            elif i != j and str(num_1)[i] == str(num_1)[j]:
                return True
            elif i != j and str(num_2)[i] == str(num_2)[j]:
                return True
def has_zero(num):
    ''' Judge var_number whether it has 0 or not!
    '''
    for k in str(num):
        if k == str(0):
            return True 
        #else <------Be careful!

size = 0   #init size
for a in range(100, 1000):
    for b in range(100, 1000):
        if is_same(a, b, 3) is True or has_zero(a) is True or has_zero(b) is True:
            continue
        else:
            for c in range(100, 1000):
                if is_same(a, c, 3) is True or is_same(b, c, 3) is True or has_zero(c) is True:
                    continue
                elif a+b == c:
                    size += 1
                    print('{0}={1}+{2}...............size is {3}'.format(c, a, b, size))
print(size/2)