#include #define rep(i, a, n) for (int i = a; i < n; i++) #define repr(i, a, n) for (int i = n - 1; i >= a; i--) using namespace std; using ll = long long; using P = pair; template void chmin(T &a, T b) { a = min(a, b); } template void chmax(T &a, T b) { a = max(a, b); } int main() { ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; int sum_val = 0; rep(i, 0, n) { int a; cin >> a; sum_val += a; } int v; cin >> v; cout << sum_val - v << endl; }