Thông tin

noob prod

#include <bits/stdc++.h>
#define ll long long
#define vt vector
#define sti string

//love mah babies @tungdzbodoivc, @itachivsshisui and @haidang3004

using namespace std;



int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0);



    return 0;
}

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