#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define dup(x,y) (((x)+(y)-1)/(y))
#define ALL(x) (x).begin(), (x).end()
typedef long long ll;
typedef pair<int, int> pii;
const double EPS = 1e-10;
const int INF = 1e9;
const ll LINF = 1e18;
const int MOD = 1000000007;
const double PI = acos(-1);
int dx[4] = {0,1,0,-1};
int dy[4] = {1,0,-1,0};

int main() {
	int n;
	cin >> n;
	if (n % 4 == 0) {
		cout << 1 << " " << n << " " << n+1 << endl;
	} else {
		int x = n / 4;
		int a = x * 4 + 1;
		cout << a << " " << a + 1 << " " << a + 2 << endl;
	}
}