package no191; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int sum = 0; int[] c = new int[n]; for(int i=0;i<n;i++) { c[i] = sc.nextInt(); sum += c[i]; } long ans = 0; for(int i=0;i<n;i++) { if (c[i] * 10 <= sum) { ans += 30; } } System.out.println(ans); } }