#include <cmath>
#include <cstring>
#include <iostream>
using namespace std;
int main()
{
    int n;
    cin >> n;
    int a[1001] = { 0 };
    for (int i = 1; i <= n; i++) {
        int len = sqrt(i);
        for (int j = 1; j <= len; j++) {
            if (i / j == 0) {
                break;
            }
            if (i % j == 0) {
                a[i] += 2;
                if (j == i/j) {
                    a[i]--;
                }
            }
        }
    }
    int ans = 0;
    for (int i = 1; i <= n; i++) {
        //cout << i << " " << a[i] << "\n";
        if (a[ans] < a[i]) {
            //cout << "\n";
            ans = i;
        }
    }
    cout << ans;
}