level 12
题目。
Give you two numbers A and B, if A is equal to B, you should print "YES", or print "NO".
输入
each test case contains two numbers A and B.
输出
for each case, if A is equal to B, you should print "YES", or print "NO".
样例输入
1 2
2 2
3 3
4 3
样例输出
NO
YES
YES
NO
2014年05月02日 13点05分
