package my_project;

import java.util.Scanner;

public class my_first_class {

    public static void main(String[] args) {

        // TODO Auto-generated method stub

        Scanner in = new Scanner(System.in);

        number x1 = new number();

        number x2 = new number();

        x1.setNum(in.nextInt());

        x2.setNum(in.nextInt());

        int sum=x1.jieChen()+x2.jieChen();

        System.out.println(x1.getNum()+ "! +  "+x2.getNum()+"! = "+ sum);

    }

}

class number{

    private int num;

    public int getNum()

    {

        return num;

    }

    public void setNum(int num)

    {

        this.num=num;

    }

    public int jieChen() //没有static是针对某一对象的

    {

        int s=1;

        for(int i=1;i<=num;i++)

        {

            s=s*i;

        }

        return s;

    }

}