Enter a number between 100 and 500

#include <iostream>
#include <stdio.h>

using namespace std;

int main()
{
    int number;

    cout << "Enter a number between 100 and 500: ";
    cin >> number;
    if (number >= 100 && number <= 500) {
        cout << number;
    }
    else {
        cout << "That number is not between 100 and 500!";
    }

    return 0;
}