#include <bits/stdc++.h>

#include <atcoder/all>
using namespace std;
using i32 = int;
using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;
#define FAST_IO                \
  ios::sync_with_stdio(false); \
  cin.tie(0);
const i64 INF = 1001001001001001001;
using Modint = atcoder::static_modint<998244353>;

int main() {
  FAST_IO

  i64 N;
  cin >> N;
  int ans = 1;
  for (i64 i = 2; i * i <= N; i ++) {
    if (N % i == 0) {
      if (N % (i * i) == 0) {
        cout << 0 << endl;
        return 0;
      }
      ans *= -1;
      N /= i;
    }
  }
  if (N != 1) {
    ans *= -1;
  }
  cout << ans << endl;
}