#include<iostream>
using namespace std;
#define s(x,y) x*y  //使用带参数的宏，用x*y替换s(x,y)
int main()
{
	int a,b,c;
	cout<<"Please input two numbers:"<<endl;
	cin>>a>>b;
	c=s(a,b);
	cout<<a<<"*"<<b<<"="<<c<<endl;
	return 0;
}
