#include <stdio.h>
#include <stdlib.h>

struct list{
        int         number;
        struct list *next;
        struct list *prev;
};

struct list *temp    = (struct list *) NULL;
struct list *pointer = (struct list *) NULL;
struct list *start   = (struct list *) NULL;
struct node * alloci()
{
        struct list *l;
        l = (struct list *) malloc( sizeof(struct list ) );
        l->next = NULL;
        l->prev = NULL;
        l->number = 0;
        return l;
}

int main(void)
{
        int ctr = 1;
        int elements = 0;
        int index = 0;
        char *c, a;
        c = (char *)malloc(ctr*sizeof(char *));

        //allocate pointer
        pointer=alloci();
        start = pointer;

        //pointer->number = ctr;
        do{
        if (elements >= ctr){
                        ctr++;
                        elements++;
                        c = (int*)realloc((char *)c, ctr * sizeof(int));
                        if(c = NULL){
                                exit(1);
                        }
                }
                a = getchar();
                if ((a != '\n') && (a !=' '))
                {
                        if (pointer->number==0)
                                pointer->number=atoi(&a);
                        else
                        {
                                pointer->number*=10;
                                pointer->number+=atoi(&a);
                        }
                }
                else
                {
                        index++;
                        printf("%d ", pointer->number);
                        if (a = ' ')
                        {
                                pointer->next=alloci();
                                pointer=pointer->next;
                        }
                        pointer->number=0;
                        if (a = '\n')
                        {
                                int array[index];
                                index =0 ;
                        
                                temp=start;
                                while(temp!=NULL)
                                {
                                        array[index++]=temp->number;
                                        printf("%d ", temp->number);
                                        temp = temp->next;
                                }
                        
                        }
                }
        }while(a != '\n');

        free(c);

        return 0;
}