# -*- coding:utf-8 -*-

 shp = [

     ['iphone',5000],

     ['offee',35],

     ['shoes',800]

 ]

 pric_list = []

 e = int(raw_input("请输入账户金额:"))

 while True:

     for i,p in enumerate(shp):

         print i,p[0],p[1]

     enther = raw_input("请输入要购买的商品序号:").strip()

     if enther.isdigit():

         enther = int(enther)

         #p_price = products[choice][1]

         pric = shp[enther][1]

         if pric <= e:

             pric_list.append(shp[enther])

             e -= pric

             print "您购买的%s已添加到购物车，剩余金额%s" %(shp[enther][0],e)

         else:

             print "金额不足，请重新选择，剩余金额%s" % e

     elif enther == 'quit':

         print "购买的商品列表"

         for k,v in enumerate(pric_list):

             print k,v

             print "剩余金额为%s" % e

         print "-----欢迎再次光临------"

         break