#
# #operazioni sui files
#
fin = open("ciccio","r")


# print fin.tell()
# l = fin.read()
# l = fin.read()
# l = fin.read()
# # print fin.tell()
# # fin.seek(fin.tell()+2)
# # l = fin.readlines()
# print l












# comandi sisOp
#
# import os
# print os.getcwd()
# print os.getgroups()
# print os.listdir('.')