import collections,sys,math,functools,operator,itertools,bisect,heapq,decimal,string,time,random
#sys.setrecursionlimit(10**9)
#sys.set_int_max_str_digits(0)
#input = sys.stdin.readline
#n = int(input())
#alist = list(map(int,input().split()))
#alist = []
s = input().rstrip()
#n,m = map(int,input().split())
#for i in range(n):
#    alist.append(list(map(int,input().split())))
a = []
b = []
for i in s:
    if i in string.digits:
        b.append(i)
    else:
        a.append(i)
a.reverse()
print(''.join(a),''.join(b),sep='')