#include<iostream>
using namespace std;
int main()
{
int a,b;
a=9;
b=10;
cout<<a++<<endl<<" "<<++a<<" "<<a<<endl;
cout<<a<<endl;
cout<<b--<<" "<<--b<<" "<<b<<endl;
cout<<b<<endl;
return 0;
}


高手请指导一下了！