#include <iostream>
#include <stdio.h>
using namespace std;
FILE *f,*g;
int n;
int a[1000][1002];
void read ()
{
    fscanf(f,"%d",&n);
    for(int i=1; i<=n; i++)
        for(int j=1; j<=n; j++)
            fscanf(f,"%d",&a[i][j]);
}
void roy_floyd()
{
    for(int k=1; k<=n; k++)
        for(int i=1; i<=n; i++)
            for(int j=1; j<=n; j++)
                if(a[i][k] && a[k][j])
                    if(a[i][k]+a[k][j]<a[i][j] && i!=j && a[i][j])
                        a[i][j]=a[i][k]+a[k][j];
}
void write()
{
    for(int i=1; i<=n; i++,fprintf(g,"\n"))
        for(int j=1; j<=n; j++)
            fprintf(g,"%d ",a[i][j]);
}
int main()
{
    f=fopen("royfloyd.in","r");
    g=fopen("royfloyd.out","w");
    read();
    roy_floyd();
    write();
    fclose(f);
    fclose(g);
    return 0;
}