12翻一下是21,34翻一下是43,12+34是46,46翻一下是64,现在又任意两个正整数,问他们两个数反转的和是否等于两个数的和的反转。
try: while 1: for i in xrange(input()): a, b = raw_input().split() s1 = int(a[::-1]) + int(b[::-1]) s2 = int(str(int(a) + int(b))[::-1]) print 'NO' if s1 != s2 else int(a) + int(b) except: pass