text: #include<stdio.h>//auto save is a piece of warm light!!!
  #include<stdlib.h>
  #define MAXL 100
  typedef struct a{
      char data;
      struct a* p;
  }node,*pnode;
  
  int main(){
      pnode h,q,t;
      node head;
      head.p = NULL;
      head.data = MAXL;
      h = t = &head;
      char temp;
      while((temp=getchar()) != EOF && temp!='\n'){
          q = (pnode)malloc(sizeof(node));
          q->data = temp;
          q->p = t;
          t = q;
      }
      while(t->p){
          printf("%c",t->data);
          t = t->p;
      }
      return 0;
  }
  