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# -*- coding: utf-8 -*-

def huishu():

i = int(input(">>> "))

s = list(filter(lambda n:int(str(n)[::-1])==n,range(1,i+100)))

if i in s:

f = str(i)

if len(f) <= 3:

print(f[:-1],"+",f[len(f)//2:])

else:

print(f[:len(f)//2],"+",f[len(f)//2:])

print(i,"是回数")

else:

print(i,"不是回数")

huishu()