public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); int maximum=0; //write your code here ArrayList<Integer> data=new ArrayList<>(); int i;int n=0; n=Integer.parseInt(reader.readLine()); data.add(n); for (i=1;i<n;i++) { data.add(Integer.parseInt(reader.readLine())); } for (i=0;i<n;i++){ int x=data.get(i); if (x>maximum){ maximum=x; } } System.out.println(maximum); } }