#include<stdio.h>
#define inf 2000000000
FILE *f=fopen("royfloyd.in","r"), *g=fopen("royfloyd.out","w");
int a[80][80], n;


void cit()
{
	fscanf(f,"%d", &n);
	for(int i=1;i<=n;i++)
		for(int j=1;j<=n;j++)
			fscanf(f,"%d", &a[i][j]);
}
int main()
{
	cit();
	
	for(int k=1;k<=n;k++)
		for(int i=1;i<=n;i++)
			for(int j=1;j<=n;j++)
				if(i!=j && a[i][k] && a[k][j] && (a[i][j]> a[i][k]+a[k][j] || !a[i][j]))
					a[i][j]=a[i][k]+a[k][j];
	
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=n;j++)
			if(i!=j)
				fprintf(g,"%d ", a[i][j]);
			else fprintf(g,"0 ");
		fprintf(g,"\n");
	}
	return 0;
}