import reprlib

import requests

# payload = {'isbn': '9780062113788'}
# r = requests.post('http://library.dandhost.com/lookup', data= {'isbn': '9780062113788'})
# print(r.text)

URL = 'http://library.dandhost.com'

UserID = 1
Card = 1
Shelf = 1
Mode = 1


def processBook(ISBN):
    if Mode == 1:
        r = requests.post(URL+'/checkin/', data={'isbn': ISBN, 'locationid': Shelf, 'userid': UserID})
        print(r.text)


while True:
    var = str(input())
    x = var.split('.')
    if x[0] == 'LOC':
        Shelf = x[1]
        print('Switching shelf to shelf #' + Shelf)
    elif x[0] == 'CI':
        Mode = 1
    elif x[0] == 'CO':
        Mode = 2
    elif x[0] == 'CARD':
        Card = 1
    else:
        ISBN = x[0]
        print(ISBN)
        processBook(ISBN)