import java.util.Scanner;

public class HelloWorld {

	    public static void main(String[] args) throws Exception {

	    	Scanner sc = new Scanner(System.in);
	    	int a = sc.nextInt();
	    	sc.close();

	    	boolean flag = false;
	    	for (int i=1; i < a / 3 ; i++) {
	    		int sum_now = 0;
	    		for (int j=i; ;j++) {
	    			if (sum_now > a) {
	    				break;
	    			}
	    			if (sum_now == a) {
	    				flag = true;
	    				break;
	    			}
	    			sum_now += j;
	    		}
	    		if (flag == true) {
	    			break;
	    		}
	    	}

	    	System.out.println(flag ? "YES" : "NO");
	    	}

	    }