9-И-2 ex.2

# -*- coding: utf-8 -*-
"""
Created on Thu Nov 19 20:43:52 2020

@author: Sergey
"""
def is_palindrom(a):
    if len(a)%2==0:
        b=int(len(a)/2)
    else:
        b=int((len(a)/2)+1)
    c=0
    for i in range(b):
        if a[i]==a[-i-1]:
            c+=1
    if c != b:
        return False
    else:
        return True



a = int(input())
a=str(a)
if is_palindrom(a):
    print('Является палиндромом')
else:
    while not is_palindrom(a):
        a=int(a)
        a+=1
        a=str(a)
    print(a)