#include <iostream>
#include <queue>
using namespace std;
int main() {
// create a queue of string
queue<string> animals;
// push elements into the queue
animals.push("Cat");
animals.push("Dog");
cout << "Queue: ";
// print elements of queue
// loop until queue is empty
while(!animals.empty()) {
// print the element
cout << animals.front() << ", ";
// pop element from the queue
animals.pop();
}
cout << endl;
return 0;
}