#include using namespace std; #ifdef LOCAL #include "settings/debug.cpp" #define _GLIBCXX_DEBUG #else #define Debug(...) void(0) #endif #define rep(i, n) for (int i = 0; i < (n); ++i) using ll = long long; using ull = unsigned long long; int main() { int n; cin >> n; vector a(n); rep(i, n) cin >> a[i]; int v; cin >> v; cout << accumulate(a.begin(), a.end(), 0) - v << endl; return 0; }