#include <bits/stdc++.h>
using namespace std;
long long n, x, ans, b;
long long a[100000000];

int main() {
	cin >> n >> x;
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
		b = 3 + a[i];
		ans += b;
	}
	cout << ans;
	return 0;
}