#include <stdio.h>

int main() {
    int n;
    scanf("%d", &n);

    if (n<0){
        printf("Invalid Input");
        return 0;
    }

    int a[n][n],i,j;
    int sum=0,prod=1;

    for (i=0;i<n;i++){
        for (j=0;j<n;j++){
            scanf("%d",&a[i][j]);
        }
    }
 
    for (i=0;i<n;i++){
        sum += a[i][i];
        prod *= a[i][i];
    }
    
    printf("Sum:%d\n", sum); 
    printf("Product:%d", prod); 

    return 0;
}
printf("to start the value of this program in this function to");