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