5 time_begin = datetime.datetime.now()  variable
12 time_begin = datetime.datetime.now()  variable
19 time_begin = datetime.datetime.now()  variable
25 time_begin = datetime.datetime.now()  variable
32 time_begin = datetime.datetime.now()  variable
38 time_begin = datetime.datetime.now()  variable
47 time_begin = datetime.datetime.now()  variable
53 time_begin = datetime.datetime.now()  variable
61 time_begin = datetime.datetime.now()  variable
67 time_begin = datetime.datetime.now()  variable
75 time_begin = datetime.datetime.now()  variable