#include <iostream>

int add(int a, int b) {
    return a + b;
}

void greet(const std::string& name) {
    std::cout << "Hello, " << name << "!" << std::endl;
}

int main() {
    int x = 5;
    int y = 10;
    int result = add(x, y);
    
    greet("World");
    
    std::cout << "Result: " << result << std::endl;
    return 0;
}