#include <iostream>

using namespace std;
class Matrix{
public:
    Matrix(int n){
    this->n=n;
    int i,j;
    cout<<"Introduce matricea:";

    for(i=0;i<n;i++)
        for(j=0;j<n;j++)
            cin>>a[i][j];
    }
    void toString(){
        for(int i=0;i<n;i++){
        cout<<endl;
            for(int j=0;j<n;j++)
                cout<<this->a[i][j]<<" ";
        }
    }
    Matrix adunare(Matrix b){
      if(b.n == this->n){
            int i,j;


        for(i=0;i<n;i++)
            for(j=0;j<n;j++)
                b.a[i][j]=this->a[i][j]+b.a[i][j];

      }
      return b;
    }
      Matrix inmultire(Matrix b){
      if(b.n == this->n){
            int i,j,l;

        int c[100][100];
        for(i=0;i<n;i++)
            for(j=0;j<n;j++)c[i][j]=0;

        for(i=0;i<n;i++)
            for(j=0;j<n;j++)
                for(l=j;l<=n;l++){
                    c[i][j]=this->a[i][l]+b.a[l][j];

                }
          for(i=0;i<n;i++){

            for(j=0;j<n;j++){
                b.a[i][j]=c[i][j];

            }
          }
      }
      return b;
    }

private:
    int a[100][100],n;

};
int main()
{

    Matrix a = Matrix(2);
    Matrix b = Matrix(2);
    a.toString();
    b=a.inmultire(b);
    b.toString();

    return 0;
}