probabilites

import java.util.*;

class Solution {

    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        int N = in.nextInt();
        int[] values = new int[N];
        boolean[] probs = new boolean[N];
        for (int i = 0; i < N; i++) {
            values[i] = in.nextInt();
            probs[i] = false;
        }
        for(int i = 0; i < values.length; i++)
            if(p(values, values[i]) == values[i])
                probs[i] = true;
        int nb = 0;
        for(boolean b : probs)
            if(b)
                nb++;
        System.out.print(nb*100/N);
    }
    public static int p(int[] tab, int x)
    {
        int c = 0;
        for(int i : tab)
            if(i == x)
                c++;
        return c*100/tab.length;
    }
}