#include<iostream>
#include<cstdlib>
#include<time.h>
using namespace std;
int tab[100][100];
int s,n;
int main(){
	cin>>n;
	srand(time(NULL));
	for (int i=0; i<n; ++i)
	for (int j=0; j<n; ++j)
	tab[i][j]=rand()%100;
	for (int i=0; i<n; ++i)
	{
		for (int j=0; j<n; ++j) cout<<tab[i][j]<<" ";
		cout<<endl;
	}
	cout<<endl;


	s=0;
	for (int i=0; i<n; ++i) s += tab[i][0];
	cout<<"suma 1k "<<s<<endl;



	for (int i=0; i<n; ++i) tab[i][i]=0;
	cout<<endl;
	for (int i=0; i<n; ++i)
	{
		for (int j=0; j<n; ++j) cout<<tab[i][j]<<" ";
		cout<<endl;
	}
	cout<<endl;

	cin.ignore();
	getchar();
	return 0;
}