// editor2
#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node*node;

}Node;
Node*head=NULL,*tail;
int j=0;
void create(int num){
    Node*newNode=(Node*)malloc(1*sizeof(Node));
    newnode->data=num;
    newnode->next=NULL;
    if(head==NULL){
        head=newNode;
        tail=newNode;
        
    }else{
        tail->next=newNode;
        tail=newNode;
        
    }
}
void display(){
    Node*itr;
    for(itr=head;itr!=NULL;itr=itr->next){
        if(itr->data%2==0){
            printf("%d",itr->data);
            j=1;
        }
    }
    
}
int main(){
    int i,n,num;
    scanf("%d",&n);
    for(i=0;i<n;i++){
        if(!scanf("%d",&num)){
            printf("Invalid input");
            return 0;
        }
        create(num);
        }
        display();
        if(j==0){
            printf("Empty");
            return 0;
        }
    }