#include<stdio.h>
#include<stdlib.h>
struct node{
int x;
char y;
struct node*p ;
};
struct node*ptr,*head,*first;
int main(){
int i,k=1;
char l='a';
head=ptr;
ptr=(struct node*)malloc(sizeof(struct node));
for(i=0;i<26;i++){
    ptr->x=k++;
    ptr->y=l++;
    printf("%d %c\n",ptr->x,ptr->y);
    ptr->p=(struct node*)malloc(sizeof(struct node));
   ptr= ptr->p;
}
ptr->p=NULL;
ptr=head;
first=(struct node*)malloc(sizeof(struct node));

first->x=27;
first->y='A';
first->p=ptr;
head=first;
printf("%d %c\n",ptr->x,ptr->y);
return 0;
}