Problem121(){
		
		int sum = 0;
		int c = 0;
		System.out.println(helper(n,0));
		
		
		/*for(int i = 0; i < n; i++){
			a[i] = 1.0/(i+2);
			System.out.println(a[i]);
		}
		
		System.out.println(win);
		System.out.println(helper(0, win));
		System.out.println(11.0/120);*/
	}