import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*; public class Solution { static int solve(int[] A) { // Return the length of the longest possible sequence of moves modulo 10^9+7. int[] ans=trans(trans(A)); int sum=0; for(int i=0;i lis=new Vector<>(); int j=0; int[] sub; int m=0; for(int k=0;kA[max]){ max=i; } } return A[max]; } public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); int[] a = new int[n]; for(int a_i = 0; a_i < n; a_i++){ a[a_i] = in.nextInt(); } int result = solve(a); System.out.println(result); in.close(); } }