#include<stdio.h>

int n, a[105][105];

int main()
{
	FILE *f=fopen("royfloyd.in","r"),*s=fopen("royfloyd.out","w");
	
	int i,j,k;
	fscanf(f,"%d",&n);
	
	for (i=1;i<=n;i++)
		for(j=1;j<=n;j++)
			fscanf(f,"%d",&a[i][j]);

	for(k=1;k<=n;k++)
		for(i=1;i<=n;i++)
			for(j=1;j<=n;j++)
				if(a[i][k] && a[k][j] && (a[i][j] > a[i][k] + a[k][j] || !a[i][j]) && i != j)
					a[i][j] = a[i][k] + a[k][j];

	for(i=1;i<=n;i++)
	{
		for(j=1;j<=n;j++)
			fprintf(s,"%d",a[i][j]);
		fprintf(s,"\n");
	}
	
	fclose(s);
	
	return 0;
}