9.22 (3)

#include<iostream>
using namespace std;
int main(){
    int a=7,b;
    b=a++;
    cout<<b<<endl;
    return 0;
}

#include<iostream>
using namespace std;
int main(){
    int a=7,b;
    b=++a;
    cout<<b<<endl;
    return 0;
}