#! /usr/bin/env python3
# coding: utf-8
# github: https://github.com/fengpenghui
# 码云: https://gitee.com/fengpenghui0923


l1 = [4,5,7,1,3,9,0]
l2 = sorted(l1.copy())

for i in range(len(l1)):
    print(l1[i],l2[i])
