0pts,样例已过，求条

#include<bits/stdc++.h>
using namespace std;
int in(){
	int z=0,f=1;
	char c;
	c=getchar();
	if(c=='-'){
		f=-1;
		c=getchar();
	}
	while(c>='0'&&c<='9'){
		z=z*10+c-'0';
		c=getchar();
	}
	return z*f;
}
int  main()
{
	int  n,z=0,b;
    cin>>n;
    b=in();
	for(int i=0;i<n;i++){
        b=in();
        z=z+b;
    }
    cout<<z;
	return 0;
}