public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scan =new Scanner(System.in);
		
		System.out.print("Yesなら１を、Noなら１以外を入力　> ");
		int val;
		val =scan.nextInt();
		if(val == 1){
			System.out.println("Yes");
		}else {
			System.out.println("No");
			
		}
	}