Switch Case and Random Nums

#include <iostream>
#include <cstdlib>
#include <ctime>

using namespace std;

int main()
{
    int uInput;

    cout << "Enter 1 to generate a random number 1-10\n";
    cout << "Enter 2 to generate a random number 1-100\n";
    cout << "Enter 3 to generate a random number 1-1000\n";
    cout << "Enter Here: ";
    cin >> uInput;

    switch(uInput)
    {
        case 1:
        {
            srand(static_cast<unsigned int>(time(0))); //Seed random number with current time.
            int rndNum1 = rand() % 10 + 1;
            cout << "Randomly Generated Number: " << rndNum1 << endl;

            break;
        }
        case 2:
        {
            srand(static_cast<unsigned int>(time(0))); //Seed random number with current time.
            int rndNum1 = rand() % 100 + 1;
            cout << "Randomly Generated Number: " << rndNum1 << endl;

            break;
        }
        case 3:
        {
            srand(static_cast<unsigned int>(time(0))); //Seed random number with current time.
            int rndNum1 = rand() % 1000 + 1;
            cout << "Randomly Generated Number: " << rndNum1 << endl;

            break;
        }
        default:
        {
            cout << "Invalid\n";
        }

    }
    system("pause");
}