#include <stdio.h>
#define max 100
int queue [max];
int front=-1,rear=-1;
void enqueue(int n){
    if(rear=max-1){
       printf("list is full");
       return ;
    }
    if(front==-1){
        front =0;
    }
    queue[++rear]=n;
}
void dequeue(){
    if(front==-1 || front>rear){
        printf("list is empty");
        return;
    }
    printf("%d",queue[front]);
    front++;
}
int main(){
    int size;
    int x;
    scanf("%d", &size);
    if(size<0){
        printf("Invalid input");
    }
    for(int i=1;i<size;i++)
    scanf("%d", &x);
    enqueue(x);
}
    for(int i=0;i<size;i++)
    dequeue();
    
}