#include<fstream>
using namespace std;
ifstream F("royfloyd.in");
ofstream G("royfloyd.out");
short d[101][101];
unsigned char n,i,j,k;
int main()
{
    F>>n;
    for(i=1;i<=n;++i)
        for(j=1;j<=n;++j) {
            F>>d[i][j];
            if(!d[i][j])
                d[i][j]=1001;
        }
    for(k=1;k<=n;++k)
        for(i=1;i<=n;++i)
            for(j=1;j<=n;++j)
                if(d[i][j]>d[i][k]+d[k][j])
                    d[i][j]=d[i][k]+d[k][j];
    for(i=1;i<=n;++i,G<<"\n")
        for(j=1;j<=n;++j)
            G<<(i==j||d[i][j]==1001?0:d[i][j]);
    return 0;
}