题目描述
输入格式
For each test case, the first line has a single integer, n (n<=1000). The next n lines have two integers a and b (1<=a,b<=2000) each, indicating b is the father of a. One person has exactly one father, of course. Little A is numbered 1 and Little B is numbered 2.
Proceed to the end of file.
输出格式
样例输入
5 1 3 2 4 3 5 4 6 5 6 6 1 3 2 4 3 5 4 6 5 7 6 7
样例输出
You are my elder You are my brother
比赛公告
题号:1361,1362,1363,1364,1365,1366,1367,1368,1369,1370
点击上方导航栏的训练,点击题库,寻找题号即可找到对应题目,比赛结束后,请通过训练->题库->寻找对应题目的方式做题
因为不确定因素太多,就不再安排大家轮流讲题了,大家做不出题可以在测试结束后去题库找对应的题目看题解,希望大家自觉练习,认真练习,考核测试会采取不同与现在测试的方式,两个月后综合测试成绩不达标者会退出实验室,希望大家认真对待