#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
 
struct node{
		int x;
		struct node *next;
	};
 
char quit;
 
int main() {
	struct node *tail;
	struct node *temp;
	struct node *counter;
 
	counter=tail;
	do{
		temp=(struct node *)malloc(sizeof(struct node));
		printf("Enter data ");
		scanf("%d",&temp->x);
		printf("To quit press q or c to continue ");
		scanf("%c",&quit);
		temp->next=NULL;
		counter->next=temp;
		counter=temp;
 
	}while(quit!='q');
 
	getchar();
	return 0;
}