#include<stdio.h>
#define SIZE 5
int queue[SIZE];
int front = -1,rear = -1;
void enqueue(int x){
    if(rear == SIZE -1){
        printf("Queue Overflow\n");
    }
    else {
        if(front == -1){
            front= 0;
        }
        queue[++rear]=x;
        printf("%d ",x);
    }
}
int main(){
    enqueue();
    return 0;
}