#include<stdio.h>
#define NEW (SLIST *)malloc(sizeof(SLIST))
#include<stdlib.h>
typedef struct node
{
    int data;
    struct node *next;
}SLIST;
SLIST *creat_slist()
{
    int c;
    SLIST *h,*r,*s;
    h=NEW;
    r=h;
    scanf("%d",&c);
    while(c!=-1)
    {
        s=NEW;
        s->data=c;
        r->next=s;
        r=s;
        scanf("%d",&c);
    }
    r->next='\0';
    return h;
}
void print_slist(SLIST *h)
{
    SLIST *p;
    p=h->next;
    if(p='\0') printf("link_slist is null!\n");
    else
    { printf("head\n");
      do
      {printf("->%d",p->data);
      p=p->next;
      }while(p!='\0');
      printf("end\n");
    }
}

main()
{
    SLIST *head;
    head=creat_slist();
    print_slist(head);
}