import single

#f = single.Solution()
print single.Solution().singleNumber([3,5,5,3,7,7,4,2,2])
#print s

c58754f97f155dfa5dd2064229adf482b7663c15
import single

#f = single.Solution()
print single.Solution().singleNumber([3,5,5,3,7,7,4,2,2])
#print s
