import java.util.Random;
import java.util.Scanner;
public class JiSuanShi {
        public static void main(String[] args){
            for(int i=0;i<=30;i++)
            {
                //System.out.print("请输入第"+(i+1)+"题的答案");
                char[] c={‘+‘,‘-‘,‘*‘,‘/‘};
                Random r1=new Random();
                Random r2=new Random();
                Random r3=new Random();
                int z=r1.nextInt(4)+1;
                int m=r2.nextInt(100)+1;//生成随机数1
                int n=r3.nextInt(100)+1;//生成随机数2
                //m=(int)(Math.random()*100);
                //n=(int)(Math.random()*100);
                if(z==1)   //用一个数字代替加减运算符，减少不必要的判断
                {
                    System.out.println(m+"+"+n+"=");
                    //Boolean b=add(m,n);
                }
                else if(z==2)
                {
                    System.out.println(m+"-"+n+"=");
                }
                else if(z==3)
                {
                    System.out.println(m+"*"+n+"=");
                }
                else if(z==4)
                {
                    System.out.println(m+"/"+n+"=");
                }
            }
                
        }

        
        }


    }