import java.util.*;
public class Main {
    public static void main(String args[]) {
		Scanner scn=new Scanner(System.in);
		int N=scn.nextInt();
		int height,hypo;
		if(N%2==0)
		{
			int m=N/2;
			int n=1;
			height=(m*m)-(n*n);
			hypo=(m*m)+(n*n);
		}
		else if(N%2!=0)
		{
			int m=(N+1)/2;
			int n=(N-1)/2;
			height=2*m*n;
			hypo=((m*m)+(n*n));
		}
		else System.out.print("-1");
		System.out.print(height+" ");
		System.out.print(hypo);
    }
}