/**
 * Name : Jayjeet Chakraborty (noobjc)
 * Lang : C++
 */

#include <bits/stdc++.h>
#define int long long
#define uint unsigned long long
#define input(x) scanf("%lld", &x)
#define output(x) printf("%lld", x)
#define faster ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define rep(x, a, b) for (int(x) = (a); (x) < (b); (x)++)
#define repr(x, a, b) for (int(x) = (a); x >= (b); (x)--)
#define iter(x, container) for (auto x = container.begin(); x != container.end(); x++)
#define all(container) container.begin(), container.end()
#define present(container, x) container.find(x) != container.end()
#define mp make_pair
#define pb push_back
#define vii vector<pii<int, int>>
#define pii pair<int, int>
#define intmin INT_MIN
#define intmax INT_MAX
#define mod 1e9 + 7
using namespace std;

int32_t main(/*int argc, char const *argv[]*/)
{
    faster;
    return 0;
}