#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]);
        }
    }
    long long sum = 0;
    long long product = 1;
    for(int i = 0;i < n;i++) {
        sum += matrix[i][i];
        product *= matrix[i][j];
    }
    printf("sum:%lld\n",sum);
    printf("product:%lld",product);
    return 0;
}