rt

#include<bits/stdc++.h>
using namespace std;
inline int read(){
    register int s=0,w=1;
    char ch=getchar();
    while(ch<'0'||ch>'9'){
		if(ch=='-')w=-1;
		ch=getchar();
	}
    while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
    return s*w;
}
inline void print(int x){
    if(x<0){putchar('-');x=-x;}
    if(x>9)print(x/10);
    putchar(x%10+'0');
}
int main(){
	int n,cnt=0;
	n=read();
	for(int i=1;i<=n;i++){
		cnt+=read();
	}
	print(cnt);
	return 0;
}

救救我！！！