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

typedef struct str
{
	int val;
	struct str* next;
} str;

str* copy(str* el)
{
	str* cpy = malloc(sizeof(str));
	*cpy = *el;
	return cpy;
}

str* new_element(int v)
{
	str* cpy = malloc(sizeof(str));
	cpy->val = v;
	return cpy;
}

str* add(str* head, str* el)
{
	if(head != NULL)
	{
		str *a, *b, *c;
		a = b = c = head;
		do{
			a = b;
			b = c;
			c = c->next;
		}while(c!=head);
		a->next = el;
		el->next = b;
		return head;
	}
	else
	{
		el->next = el;
		return el;
	}
}

void main()
{
	str head = {2, &head};
	str head2 = {5, NULL};
	str *list = &head;
	str *curr = list;
	char a; int i = 0;
	while(1)
	{
		a = getch();
		if(a == 'q')
		{
			printf("[%d] ", curr->val);
			curr = curr->next;
		}else
		{
			printf("\n");
			list = add(list, new_element(i));
			curr = list;
		}
//		printf("PRESSED '%c'", a);
		i++;
	}
}