import java.util.*;
public class Text2 {
public static void main(String args[]){
Random r = new Random(); //產生隨機數
int a = r.nextInt(100); //表明範圍
int b = r.nextInt(100);
System.out.println("第壹個數為:"+a);
System.out.println("第二個數為:"+b);
Scanner input = new Scanner(System.in);
System.out.println("\n輸入2個數的和:");
boolean j = true;
int c;
while(j){
c =input.nextInt();
if(c==a+b){
break;
}
System.out.println("輸入錯誤請重新輸入:");
}
System.out.println("\n終於答對了");
}
}