#include <stdio.h>
#include <stdlib.h>

int main() {
	int n, i, sum = 0;

	scanf("%d", &n);
	int *arr = malloc( n * sizeof *arr);

	for ( i = 0; i < n; i++ ){
		scanf("%d", &arr[i]);
		sum = sum + arr[i];
	}
	printf("%d", sum);

	free(arr);

    return 0;
}