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# -*- coding:utf-8 -*-

__author__ = 'gjw'

__time__ = '2018/1/3 0003 上午 10:07'

# 题目：有四个数字：1、2、3、4，能组成多少个互不相同且无重复数字的三位数？各是多少？

# 程序分析：可填在百位、十位、个位的数字都是1、2、3、4。组成所有的排列后再去 掉不满足条件的排列。

# 1.基础版

for i in range(1, 5):

for j in range(1, 5):

for k in range(1, 5):

if (i != k) and (i != j) and (j != k):

print(i, j, k)

# 2.列表解析

l_num = [1, 2, 3, 4]

ls = [i*100 + j *10 + k for i in l_num for j in l_num for k in l_num if(j != k and j != i and i != k)]

print(ls)