import datetime
print(()) # 2019-01-28 11:09:01.529864
print(().strftime('%Y-%m-%d %H:%M:%S.%f')) # 2019-01-28 11:09:01.529864
print(().strftime('%Y%m%d%H%M%S%f')) # 20190128110901529864
import datetime
print(()) # 2019-01-28 11:09:01.529864
print(().strftime('%Y-%m-%d %H:%M:%S.%f')) # 2019-01-28 11:09:01.529864
print(().strftime('%Y%m%d%H%M%S%f')) # 20190128110901529864