#include #include #include #include #include <string.h> #include #include <stdio.h> #include #include #include #define int long long using namespace std; const int N = 1e5 + 10; const int INF = 0x3f3f3f3f; signed main() { int n; cin >> n; int maxn = -INF; for(int i = 1; i <= n; i++) { int x; cin >> x; maxn = max(maxn, x); } cout << maxn << endl; return 0; }