///insert at end
#include <stdio.h>
#include <stdlib.h>

struct node
{
    int data;
    struct node *next;
};

int main()
{
    struct node *prev,*head,*p;
    int n,i;
    scanf("%d",&n);
    head=NULL;
    for(i=0;i<n;i++)
    {
        p=(struct node*)malloc(sizeof(struct node));
        scanf("%d",&p->data);
        p->next=NULL;
        if(head==NULL){
            head=p;
        }
        else{
            prev->next=p;
        }
        prev=p;
    }
    struct node* ptr;
    ptr=head;

    int dat;
    printf("Enter data");
    scanf("%d",&dat);

    while(ptr!=NULL){
        prev=ptr;
        ptr=ptr->next;
    }
    p=(struct node*)malloc(sizeof(struct node));

    p->data=dat;
    prev->next=p;
    p->next=NULL;

    ptr=head;

    while(ptr!=NULL)
    {
        printf("data : %d\n",ptr->data);
        ptr=ptr->next;
    }
    return 0;
}