#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int data;
    struct node *next
}node;
node *head=NULL,tail;
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 delete(int pos){
    node *first=head;
    node *second=head->next;
    int cnt=1;
}
void display(){
    node *itr;
    for(itr=head;itr!=NULL;itr=itr->next){
        printf("%d",itr->data);
    }
}