#include<stdio.h>

int main() {
    int n, sum = 0, product = 1;
    
    scanf("%d", &n);
    
    if (n < 0) {
        printf("Invalid input\n");
        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]);
            
            if (i == j) {
                sum += matrix[i][j];
                product *= matrix[i][j];
            }
        }
    }
    
    printf("Sum:%d\n", sum);
    printf("product:%d")