#include int main() { double num1, num2, num3; std::cout << "Enter

#include
int main() {
double num1, num2, num3;
std::cout << "Enter the first number: "; std::cin >> num1;
std::cout << "Enter the second number: "; std::cin >> num2;
std::cout << "Enter the third number: "; std::cin >> num3;
double sum = num1 + num2 + num3;
std::cout << "Sum of the three numbers is: " << sum << std::endl; return 0; }