#include <bits/stdc++.h> using namespace std; int main() { int n; cin>>n; int a[n]; for(int i = 1;i <= n;i++) { cin>>a[i]; } int max = a[0]; for(int i = 1;i <= n;i++) { if(max < a[i]) { max = a[i]; } } cout<<max<<endl; return 0; }