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

int main()
{
	FILE *f,*g;
	int k,i,j,n,**m,**m2;
	f=fopen("royfloyd.in", "r");
	g=fopen("royfloyd.out", "w");
	fscanf(f,"%d",&n);
	m=(int **)malloc(n*sizeof(int *));
	m2=(int **)malloc(n*sizeof(int *));
	for(i=0;i<n;i++)
	{	
		m[i]=(int *)malloc(n*sizeof(int));	
		m2[i]=(int *)malloc(n*sizeof(int));
		for(j=0;j<n;j++)
		{	
			fscanf(f,"%d",&m[i][j]);
			m2[i][j]=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]=m[i][k]+m[k][j];
	for(i=0;i<n;i++,fprintf(g,"\n"))
		for(j=0;j<n;j++)
			if(m2[i][j]==0)
				fprintf(g,"0 ");
			else
				fprintf(g,"%d ",m[i][j]);
	fclose(f);
	return 0;
}