#include "pt4.h"
using namespace std;

void Solve()
{
    Task("DArray5");
    int qe,g, mass, i,j,N,M,a[20][20];
pt>>N;
M = 0;
g = 1;
qe = 0;
for (i=0; i<N; i++)
for (j=0; j<N; j++)
    pt>>a[i][j];


for (mass = 0; mass < N-1; mass++)
   {
    qe+=1;
    g = qe;
    for (i=g; i<N; i++)
    {
    a[i][mass] = 0;

    }
    }


for (i=0; i<N; i++)
for (j=0; j<N; j++)
    pt<<a[i][j];
}