import java.util.Scanner;
interface employee1 {
  public float setOT(float s);
}
interface employee2 {
  public float calOT(float s,int h);
}
public class MultiInterfaceTest implements employee1,employee2 {
  public float setOT(float s) {
    return s/30;
  }
  public float calOT(float s,int h){
      return setOT(s)*h;
  }
  public static void main(String[] args) {
    MultiInterfaceTest emp = new MultiInterfaceTest();
    Scanner scan = new Scanner(System.in);
    System.out.print("Enter OT RATE >>> ");
    float salary = scan.nextFloat();
    System.out.print("Enter OT HOUR >>> ");
    int hr = scan.nextInt();    
    System.out.println("OT HOUR  = " + hr + " HR.");
    System.out.println("OT RATE  = " +
            emp.setOT(salary) + " BAHT/HR.");
    System.out.println("TOTAL OT = " +
            emp.calOT(salary,hr) + " BAHT");
  }
}