#include <cstdlib>
#include <fstream>
#define Nmax 111
#define oo 999999

/*
 *
 */
 int C[Nmax][Nmax];
 int main( void )
 {
     int N, i, j, k;
     std::ifstream in( "royfloyd.in" );
     in>>N;
     for( i=1; i <= N; ++i )
        for( j=1; j <= N; ++j )
        {
            in>>C[i][j];
            C[i][j]=( 0 == C[i][j] ? oo : C[i][j] );
        }
     for( k=1; k <= N; ++k )
        for( i=1; i <= N; ++i )
            if( k != i )
                for( j=1; j <= N; ++j )
                    if( i != j && k != j && C[i][j] > C[i][k]+C[k][j] )
                        C[i][j]=C[i][k]+C[k][j];
     std::ofstream out( "royfloyd.out" );
     for( i=1; i <= N; ++i )
     {
         for( j=1; j <= N; ++j )
            out<<( C[i][j] ? C[i][j] : oo )<<' ';
         out<<'\n';
     }
     return EXIT_SUCCESS;
 }