include include include

int main() {
int number;

std::cout << "Enter a three-digit natural number: ";
std::cin >> number;
if (number < 100 || number > 999) {
std::cout << "Error: The number is not three-digit.";
return 1;
}
std::string numberStr = std::to_string(number);
std::reverse(numberStr.begin(), numberStr.end());
int reversedNumber = std::stoi(numberStr);
std::cout << "Number with reversed order of digits: " << reversedNumber;
return 0;

}