I'm looking for any explanation. Why the value of c is 36? [duplicate]

I'm trying to understand prefix increment & postfix increment operator in C++(G++ 9.3, C++20 + GNU extensions). The code is:

#include<iostream>
using namespace std;

int main() {
    int a=12,b=13,c;
    
    c=a++ + ++a / 7 + b++;
    cout<<a<<" "<<b<<" "<<c<<endl;
    
    c=++a + a++ / 3 + ++b;
    cout<<a<<" "<<b<<" "<<c<<endl;
    return 0;
}

And, it's giving the following output:

14 14 27
16 15 36

But, I have tried to run the same code on Mac OS Monterey(clang - 1300.0.29.30). And it gives the following output:

14 14 27
16 15 35

Why both are not the same?