#include<stdio.h>
#include<conio.h>

struct node
{
	int data;
	struct node *link;
}*x,*first;

void opt();
void reading();
void check(int *);
void display();

void main()
{
	int option=0;
	first=x;
	clrscr();
	while(1)
	{
		opt();
		scanf("%d",&option);
		switch(option)
		{
			case 1: reading();	break;
			case 2: display();	break;
			case 3: exit(0);
			default: printf("\nINVALID OPTION\n");
		}
	}
}
void opt()
{
	printf("\nEnter your Choice\n\n");
	printf("1.Read data and stuff it\n");
	printf("2.Display Stuffed Data\n");
	printf("3.EXIT\n\n");
}
void reading()
{
	int a,count=0;
	printf("\n please enter bit stram one by one .. press neter after every entry .. enter anything other than 0 or 1 to stopr entering \n");
	while((scanf("%d",&a)))
	{
		if(a==1)
		{
			count++;
			x->data=a;
			// y=x;
			x->link=(struct node *)malloc(sizeof(struct node));
			x=x->link;
			check(&count);
		}
		else
		if(a==0)
		{
			count=0;
			x->data=a;
			x->link=(struct node *)malloc(sizeof(struct node));
			x=x->link;	
		}
		else
		{
			x->data=a;
			x->link=NULL;
			printf("\n\nentering any other data stops entering ... now please press enter \n\n");
			return;
		}
 	}
}

void check(int *ct)
{
	if(*ct==5)
	{
		x->data=0;
		x->link=(struct node *)malloc(sizeof(struct node));
		x=x->link;
		ct=0;
	}
}
void display()
{
	x=first;
	printf("\nStuffed Data is \n\n");
	while(x->link!=NULL)
	{
		printf("%d",x->data);
		x=x->link;
	}
}