Song of Pi

 def main():
     pi = '' # 预先给出需要比较的值
     t = int(raw_input())
     for _ in xrange(t):
         song = raw_input().strip().split(' ') # 消除尾部的换行，按照空格分割
         is_pi_song = True
         for i, song_word in enumerate(song): # 逐位对比
             if int(pi[i]) != len(song_word):
                 is_pi_song = False
                 break
         if is_pi_song:
             print "It's a pi song."
         else:
             print "It's not a pi song."

 main()