#include<stdio.h>

int arr[25];
int size,top=-1;

int isFull(){
    return top==size-1;
    
}

void enqueue(int num){
    if(isEmpty()){
        printf("queue is full");
        return;
        
    }else{
        arr[++top]==num;
        
    }
}
int main(){
    int num,itr;
    scanf("%d",&size);
    if(n<0){
        printf("Invalid input");
        return 0;
    }
    for(itr=0;itr<size;itr++){
        scanf("%d",&num);
        enqueue(num);
        
    }
}