public class maths {
    public static void main(String args[]) {
    int a = 3, b = 10, c = 7; 
    double w = 12.9, y = 3.2; 

    System.out.println("a + b * c ="+(a+b*c));
    System.out.println("a - b - c ="+(a-b-c));
    System.out.println("a / b ="+(a/b));
    System.out.println("b / a ="+(b/a));
    System.out.println("a - b / c="+(a-b/c));
    System.out.println("w / y="+(w/y));
    System.out.println("y / w="+(y/w));
    System.out.println("a + w / b="+(a+w/b));
    System.out.println("a % b / y="+(a%b/y));
    System.out.println("b % a="+(b%a));
    System.out.println("w % y="+(w%y));
    }
}