#pragma GCC optimize("unroll-loops")
#pragma GCC optimize ("Ofast")


#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <cmath>
#include <iomanip>
#include <set>

using namespace std;

string s;


signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    int n,m;
    cin >> n >> m;
    vector<vector<char>> vv(n);
    for(int i=0;i<n;i++){
        for(int  j=0;j<m;j++){
            char tmp;
            cin >> tmp;
            vv[i].push_back(tmp);
        }
    }

}