import math
import heapq
import itertools
import bisect
import random
import time
from collections import deque
import sys
from cmath import exp,pi
from functools import cmp_to_key
input=sys.stdin.readline

s=list(input().rstrip())
for i in range(len(s)):
    if ord('0')<=ord(s[i])<=ord('9'):
        p=i
        break

print(''.join(s[p-1::-1]+s[len(s)-1:p-1:-1]))