import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int num=Integer.parseInt(br.readLine());
		br.close();

		long sum1=0,sum2=0;
		int i;
		for(i=1;i<=num;i++){
			sum1+=i;
			sum2+=i+1;
		}
		System.out.println(euclid(sum2,sum1));

	}

	public static long euclid(long a,long b){
		if(b==0){
			return a;
		}else{
			return euclid(b,a%b);
		}
	}
}