A

#include <iostream>
#include <string>
#include <set>
using namespace std;
int A[502][502], n, B[1003], mn;
set <int> c;
int main()
{
    cin >> n;
    for(int i =0; i < n; i++)
    {
        mn = 100000;
        for(int j =0; j < n; j++)
        {
            cin >> A[i][j];
            if((i == j) && (A[i][j] != 0))
            {
                cout << -1;
                return 0;
            }
            if(i != j && A[i][j] < mn) mn = A[i][j];
        }
        B[i] = mn;
    }
    for(int i = 0; i < n; i++)
        for(int j = 0; j < n; j++)
    {
        if(A[i][j] != max(B[i], B[j]) && i != j)
        {
            cout << -1;
            return 0;
        }
    }

    for(int i =0; i < n; i++)
        cout << B[i] << " ";
    return 0;
}