The user input a matrix, and the output must be a new matrix with an additional column of zeros. If we apply the script to a 2 square matrix like : `{1,2,3,4}` the new matrix output will be a 2 rows & 3 columns : {1,2,32,3,4,0}. I don't understand the number 32 output.

```
#include <iostream>

int main(){

    int m,n;

    std::cout << "Input the size of the square matrix :  ";
    std::cin >> m;
    n=m;

    int A[m][n]={};
    int M[m][n+1]={0};

    for (int i(0);i<m;i++){
        for(int j(0);j<n;j++){
            std::cout << "Input element A["<<i<<"]["<<j<<"] : ";
            std::cin >> A[i][j];
            M[i][j]=A[i][j];                    
        }
    }
    for (int i(0);i<m;i++){
        for(int j(0);j<=n;j++){
            std::cout << M[i][j] << " ";
        }
        std::cout << "\n";
    }

    return 0;
}

```