import java.util.*;

public class SimpleMathGame2
{
	public static void main(String[] args)
	{
		Scanner in=new Scanner(System.in);
		Random g=new Random();
		System.out.println("Hi, I'm going to ask you four simple math questions.  Let's see how many you can get right!");
		int v1, v2, v3, op, answer, count=0;
		v1=g.nextInt(10)+1;
		v2=g.nextInt(20)-10;
		op=g.nextInt(2);
		if(op==0) 
		{
			v3=v1+v2;
			System.out.print("The problem is:  " + v1 + " + " + v2 + " = ? ");
		}							
		else 
		{
			v3=v1-v2;
			System.out.print("The problem is:  " + v1 + " - " + v2 + " = ? ");
		}
		answer=in.nextInt();
		if(answer==v3)
		{
			System.out.println("Congratulations, you got it right!");
			count++;
		}
		else System.out.println("Sorry, the answer is " + v3);

		v1=g.nextInt(20)+1;
		v2=g.nextInt(40)-20;
		op=g.nextInt(2);
		if(op==0) 
		{
			v3=v1+v2;
			System.out.print("The problem is:  " + v1 + " + " + v2 + " = ? ");
		}							
		else 
		{
			v3=v1-v2;
			System.out.print("The problem is:  " + v1 + " - " + v2 + " = ? ");
		}
		answer=in.nextInt();
		if(answer==v3)
		{
			System.out.println("Congratulations, you got it right!");
			count++;
		}
		else System.out.println("Sorry, the answer is " + v3);
		v1=g.nextInt(10)+1;
		v2=g.nextInt(20)-10;
		op=g.nextInt(2);
		if(op==0) 
		{
			v3=v1*v2; 
			System.out.print("The problem is:  " + v1 + " * " + v2 + " = ? ");
		}							
		else 
		{
			v3=v1/v2;
			System.out.print("The problem is:  " + v1 + " / " + v2 + " = ? ");
		}
		answer=in.nextInt();
		if(answer==v3)
		{
			System.out.println("Congratulations, you got it right!");
			count++;
		}
		else System.out.println("Sorry, the answer is " + v3);

		v1=g.nextInt(20)+1;
		v2=g.nextInt(40)-20;
		op=g.nextInt(2);
		if(op==0) 
		{
			v3=v1*v2; 
			System.out.print("The problem is:  " + v1 + " * " + v2 + " = ? ");
		}							
		else 
		{
			v3=v1/v2;
			System.out.print("The problem is:  " + v1 + " / " + v2 + " = ? ");
		}
		answer=in.nextInt();
		if(answer==v3)
		{
			System.out.println("Congratulations, you got it right!");
			count++;
		}
		else System.out.println("Sorry, the answer is " + v3);
		System.out.println("\n\nYou got " + count + " correct.");		
	}
}