use std::io::Read;
use std::io::stdin;
fn main() {
let mut s = String::new();
stdin().read_to_string(&mut s);
let vals = s.lines().nth(1).unwrap().split(" ");
let mut res: i32 = 0;
for v in vals
{
res += v.trim().parse::<i32>().unwrap();
}
println!("{}",res);
}
dXNlIHN0ZDo6aW86OlJlYWQ7CnVzZSBzdGQ6OmlvOjpzdGRpbjsKCmZuIG1haW4oKSB7CglsZXQgbXV0IHMgPSBTdHJpbmc6Om5ldygpOwoJc3RkaW4oKS5yZWFkX3RvX3N0cmluZygmbXV0IHMpOwoKCWxldCB2YWxzID0gcy5saW5lcygpLm50aCgxKS51bndyYXAoKS5zcGxpdCgiICIpOyAKCWxldCBtdXQgcmVzOiBpMzIgPSAwOyAKCWZvciB2IGluIHZhbHMKCXsKCQlyZXMgKz0gdi50cmltKCkucGFyc2U6OjxpMzI+KCkudW53cmFwKCk7IAoJfQoJCglwcmludGxuISgie30iLHJlcyk7IAp9CgoK