#include <iostream>
using namespace std;

int split(int n, int max_part) {
    if(n == 0) return 1;
    if(n < 0 || max_part == 0) return 0;
    return split(n - max_part, max_part) + split(n, max_part -1);
}

int main() {
    int n;
    cin >> n;
    cout << split(n, n);
    return 0;
}