1#include <iostream>
2using namespace std;
3 
4int doubleIt(int n) {
5    return n * 2;
6}
7 
8int main() {
9    int a = 3;
10    int b = doubleIt(a);
11    int c = doubleIt(b) + 1;
12    cout << a << " " << b << " " << c << endl;
13    return 0;
14}