/*
-----------------------------------------------------
	四則演算	Print_enzan
-----------------------------------------------------
*/

class Print_enzan {
	public static void main(String[] args) {
		
		int a,b,c,d,e,f,g;
		
		a = 20;
		b = 15;
		
		System.out.println("四則演算をします");
		System.out.println("ａ＝" + a);
		System.out.println("ｂ＝" + b);
		System.out.println();

		c = a + b;
		d = a - b;
		e = a * b;
		f = a / b;
		g = a % b;
		
		System.out.println("ａ＋ｂ＝" + c);
		System.out.println("ａ−ｂ＝" + d);
		System.out.println("ａ×ｂ＝" + e);
		System.out.println("ａ÷ｂ＝" + f + "　あまり　" + g);
		
	}
}