//随机生成小学四则运算
import java.util.Scanner;
public class Arithmetic {
public static void main(String[]args) {
int n;
String strsign = null;
System.out.println("输入要生成的题目数量:");
Scanner s=new Scanner(System.in);
n=s.nextInt();
for(int i=1;i<=n;i++) {
int x = 0 +(int)(Math.random() * 100);
int y = 0 +(int)(Math.random() * 100);
int sign= 1 +(int)(Math.random() * 4);
if(sign==1) {
strsign=new String("+");
}else if(sign==2) {
strsign=new String("-");
}else if(sign==3) {
strsign=new String("*");
}else if(sign==4) {
strsign=new String("/");
}
System.out.println(x+" "+strsign+" "+y+" =");
}
s.close();
}
}