#include <stdio.h>

int main (void){
    //数値の数
    int count;
    scanf("%d", &count);
    
    //数値
    int number;
    int all = 0;
    for (int j = 0; j < count; j ++){
        scanf("%d", &number);
        all += number;
    }
    printf("%d\n", all);
    return 0;
}