#include<stdio.h>
#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node *next;
}Node;
Node *head,*tail;
void create(int num)
{
    Node *newnode;
    newnode=(Node*)malloc(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){
        printf("%d ",itr->data);
    }
}
int main(){
    int size;
   
    }
    int num[size],i;
    for(i=0;i<size;i++)
        scanf("%d",&num[i]);
        if(size<=0 || )
        printf("Invalid input");
        return 0;
}
create (num[i]);
}
display();