#include <stdio.h>
#include <malloc.h>

int main()
{
	FILE *f,*g;
	int n,i,j,k;
	int **m;
	f=fopen("royfloyd.in", "r");
	g=fopen("royfloyd.out", "w");
	fscanf(f,"%d",&n);
	m=(int**)malloc(n*sizeof(int*));
	for(i=0;i<n;i++)
	{
		m[i]=(int*)malloc(n*sizeof(int));
		for(j=0;j<n;j++)
			fscanf(f,"%d",&m[i][j]);
	}
	for(k=0;k<n;k++)
		for(i=0;i<n;i++)
			for(j=0;j<n;j++)
				if((m[i][k]*m[k][j]!=0)&&((m[i][k]+m[k][j]<m[i][j])||(m[i][j]==0)))
					m[i][j]=m[i][k]+m[k][j];
	for(i=0;i<n;i++)
	{
		for(j=0;j<n;j++)
			fprintf(g,"%d ",m[i][j]);
		fprintf(g,"\n");
	}

}