// editor3
#include<stdio.h>
#define max 100
int a[max];
int front=-1;
int rear=-1;
void enqueue(int num){
    if(rear==max-1){
        printf("Queue is Full");
        return;
    }
    if(front==-1){
        front=0;
    }
        a[++rear]=num;
}
void dequeue(int num,int n){
    if(front==-1 || front>rear){
        printf("Queue is Empty");
        return;
    }
    while(1){
     if(num<0){
       printf("%d ",a[front]);
       front++;
       break;
   }
    }
}

int main(){
    int n,num;
    scanf("%d",&n);
    for(int i=0;i<n;i++){
        scanf("%d",&num);
        enqueue(num);
    }
    dequeue(num,n);
    return 0;
}