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#include <fstream>
using namespace std;
ifstream in("royfloyd.in");
ofstream out("royfloyd.out");
int main() {
int n;
in >> n;
int a[n][n];
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++) {
in >> a[i][j];
}
}
for(int k = 0; k < n; k++) {
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++) {
if(a[i][k] && a[k][j] && !a[i][j] && a[i][j] > a[i][k] + a[k][j]) {
a[i][j] = a[i][k] + a[k][j];
}
}
}
}
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++) {
out << a[i][j] << " ";
}
out << "\n";
}
return 0;
}