#include<stdio.h>
int main() 
{
    int n;
    scanf("%d",&n);
    if (n <= 0) {
        printf("Invalid Input");
        return 0;
    }
    int matrix[n][n];
    for (int i=0;i<n;i++) {
        for (int j=0;j<n;j++) {
            scanf("%d", &matrix[i][j]);
        }
    }
    isum = 0;
    long long product = 1;
    for(int i = 0;i < n;i++) {
        sum += matrix[i][i];
        product *= matrix[i][i];
    }
    printf("sum:%lld\n",sum);
    printf("product:%lld",product);
    return 0;
}