import java.util.Scanner;
public class Renzokuseisuwa {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner s =new Scanner(System.in);
		int N = s.nextInt();
		s.close();
		long sum = 0;
		for(int i = 1;i <= N;i++){
			sum += i;
		}
		long gcd = N;
		while(sum % gcd != 0){
			long r = sum % gcd;
			sum = gcd;
			gcd = r;
		}
		System.out.println(gcd);

	}

}