public String find(int n) {
		int ans = 0;
		int a;
		while(true){
			a = find_f(n);
			if(a == n)break;
			ans++;
			n = n - a;
		}
		if(ans % 2 == 1){
			return "John";
		}else{
			return "Brus";
		}
	}