#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using llu = long long unsigned;

vector<ll> dx = { 0, 0, -1, 1};
vector<ll> dy = {-1, 1,  0, 0};

#define MOD 1000000007
int main() {
    char t1, t2;
    cin >> t1 >> t2;
    cout << "(" << t1 << t2 << t1 << ")/" << endl;
    return 0;
}