#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, s, e) for (int i = (int)(s); i < (int)(e); ++i)
#define all(a) (a).begin(),(a).end()

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    
    string S;
    cin >> S;
    
    int ind = -1;
    rep(i, 0, S.size()) {
        if ('0' <= S[i] && S[i] <= '9') {
            ind = i - 1;
            break;
        }
    }
    
    for (int i = ind; i >= 0; --i) cout << S[i];
    rep(i, ind + 1, S.size()) cout << S[i];
    cout << '\n';
}