#-*-coding:utf-8
import  sys
try:
    strInput=int(raw_input('input sth.'))
    f=file('d:\\kjdsklslkdkl2l23223.datdk')
except (EOFError,ValueError): #多重异常
    print(ValueError.message)
    print('eof or value')
except:
    print('unknow error')
else:
    print('good')