#include<stdio.h>
#include "common.h"
#include<string.h>
Info *insert(Info *Head,Info *Node,int style)
{
	Info *p,*q;
	q=Head;
	p=Head->next;
	switch(style)
	{
	   default:
		   while(p!=NULL)
		   {
			   if(strcmp(p->num,Node->num)<0)
			   {
				   p=p->next;
				   q=q->next;
			   }
			   else break;
		   }
		   break;
	}
	q->next=Node;
	Node->next=p;
	return Head;			
}