public class Sample5_1 {
	public static void main(String[] args) {
		System.out.println(1 + 1);
		System.out.println(1 + 1 + 2);
		System.out.println("1 + 1 + 2の結果は" + 1 + 1 + 2 + "です");
		System.out.println("1 + 1 + 2の結果は" + (1 + 1 + 2) + "です");
	}
}
