#include<stdio.h>
#include<stdlib.h>
typedef struct Node{
    int data;
    struct Node *next;
}node;

node *head=NULL;
node *tail;
node *newnode;

void create(int num){
    newnode=(node*)malloc(sizeof(node));
    newnode->data=num;
    newnode->next=NULL;
    if(head==0){
        head=newnode;
        tail=newnode;
    }
        tail->next=newnode;
        tail=newnode;
}
void display(){
    node *ind;
    for(ind=head;ind!=NULL;ind=ind->next){
        printf("%d ",ind->data);
        return 0;
        }
}
int main(){
    int size,num,itr;
    scanf("%d",&size);
    if(!(scanf("%d",&size)) || size<0){
    
        printf("Invalid input");
        return 0;
    }
    for(itr=0;itr<size;itr++){
        scanf("%d",&num);
        if(!(scanf("%d",&num))){
            printf("Invalid input");
            return 0;
        
        }
        create(num);
    }
    display();
    return 0;
}