\(\textcolor{blue}{Unmute}\) \(\textcolor{blue}{tui}\) \(\textcolor{blue}{đi...}\) :(



Option 1
Option 2



Option 1
Option 2

Option 1

Option 2

https://lccodehub.io.vn/

helo

freopen("b1.inp","r",stdin);
freopen("b1.out","w",stdout);

import sys
sys.stdin = open("tenbai.inp", "r")
sys.stdout = open("tenbai.out", "w")

include <bits/stdc++.h>

using namespace std;

int main(){
cin >> ...;
cout << ...;
}