#include <iostream>
#include <string>
using namespace std;
// return a * b
int multiply_two(int a, int b) {
int c = a * b;
return c;
}
int main() {
cout << multiply_two(2, 3) << endl; // prints 6
int b = 4;
int c = 5;
cout << multiply_two(b, c) << endl; // prints 20
cout << c << endl; // print value of local c (5)
return 0;
}