#include <stdio.h>
int main(){
    int n,i,sum=0,x;
    scanf("%d",&n);
    int number[n];
    for (x=0;x<n;x++){
    scanf("%d",&number[x]);}
    for (i=0;i<n;i++){
        sum=sum+number[i];
    }printf("%d",sum);
    return 0;
}