#include <stdio.h>

#define infinit 1000000

int n,a[102][102],c[102][102];

int main()
{
    int i,j,k;
    FILE *f,*g;

    f=fopen("royfloyd.in","r");
    g=fopen("royfloyd.out","w");

    fscanf(f,"%d",&n);
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            fscanf(f,"%d",&a[i][j]);
            if(a[i][j]!=0)
                c[i][j]=a[i][j];
            else
                c[i][j]=infinit;
            if(i==j)
                c[i][j]=0;
        }
    }
    for(k=1;k<=n;k++)
        for(i=1;i<=n;i++)
            for(j=1;j<=n;j++)
                if(c[i][k]+c[k][j]<c[i][j])
                    c[i][j]=c[i][k]+c[k][j];
    printf("%d",n);
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
            if(c[i][j]<infinit)
                fprintf(g,"%d ",c[i][j]);
            else
                fprintf(g,"%d ",0);
        fprintf(g,"\n");
    }
    fclose(f);
    fclose(g);
}