#include<stdio.h>
#include<stdlib.h>
#define MAX 40
int Queue[MAX],value;
int front=-1,rear=-1;

void enqueue(int num)
{
    if(rear==size-1)
    {
        printf("Queue is full");
        return 0;
    }
    else
    {
        stack[++rear]=num;
    }
}

void dequeue(int num)
{
    if(front==-1)
    {
        printf("Queue is underflow");
        return 0;
    }
    else
    {
        value=queue[front--];
    }
}

void display()
{
    for(int i=front;i<rear;i++)
    {
        printf("%d",queue[i]);
    }
}

int main()
{
    enqueue(10);
    enqueue(20);
    enqueue(30);
    display();
    dequeue();
}