#include <bits/stdc++.h>
using namespace std;
struct Queue {
int start, stop, eon;
int* queue;
Queue(int y)
{
start = stop = 0;
eon = y;
queue = new int;
}
void queueEnqueue(int ghm)
{
if (eon == stop) {
cout<< endl <<"This Queue is not empty" <<endl;
return;
}
else {
queue[stop] = ghm;
stop++;
}
return;
}
void demoSam()
{
int x;
for (x = start; x < stop; x++) {
cout<< queue[x];
}
return;
}
};
int main(void)
{
Queue q(3);
q.demoSam();
q.queueEnqueue(6);
q.queueEnqueue(3);
q.queueEnqueue(12);
q.demoSam();
q.queueEnqueue(13);
q.demoSam();
return 0;
}