#include<stdio.h>
#define max 20
int arr[max];
int rear=-1,front=-1;
void enqueue(int num){
    if(front==-1){
        printf("Queue id empty");
    }if(front == -1 && rear==-1){
        front=rear=0;
    }else{
        arr[++rear]=num;
    }
}
void display(){
    for(int i=front;i<rear;i++){
        printf("%d ",arr[i]);
    }
}
int main(){
    int size;
    scanf("%d",&size);
    for(int i=0;i<size;i++){
        scanf("%d",num);
        enqueue(num);
    }
    display();
}