#include <stdio.h>
int sum_even_numbers(int *ptr, int n) {
// Your logic here
int res =0;
for(int i =0 ;i < n;i++)
{
if(*(ptr+(i)) % 2 == 0)
{
res += (*(ptr + (i)));
// printf(" ptr %p, sum - %d\n\r", (ptr + (i)), res);
}
else continue;
}
return res;
}
int main() {
int n;
scanf("%d", &n);
int arr[100];
for (int i = 0; i < n; i++) {
scanf("%d", &arr[i]);
}
int result = sum_even_numbers(arr, n);
printf("Sum = %d", result);
return 0;
}