#include <iostream>

using namespace std;

const int dim = 4;

int main()
{
        int a[dim][dim] = {1,0,0,0,
                           1,2,0,0,
                           1,1,3,0,
                           1,1,1,4};


        int k = 0;
        int r = dim-1;



                while(k < dim-2)
                {
                        for(int j = 1; j < dim; j++)
                        {
                                cout << a[k][j];

                                if(j == dim-1)
                                {
                                        k++;
                                        j = k;

                                }

                                        if(a[k][j] == a[k][j+1])
                                        {
                                                cout <<"si" <<"\n";

                                        }

                                                else
                                                {
                                                        cout <<"no\n";
                                                }
                        }

                cout <<"\n";
                }


cout <<"Ultima riga\n";

for(int j = 0; j < dim; j++)
{
        if(a[k][j] != 0)
        cout <<"ok\n";

}


return 0;
}