Human: concatinate string and datetime. Assistant: 
Here is a Python program to concatinate string and datetime

import datetime

def concat_string_and_datetime(string, datetime):
    """Concatenate a string and a datetime object."""
    return string + datetime.strftime("%Y-%m-%d %H:%M:%S")

# Enter the string
string = "lilly"

# Enter the datetime
datetime = datetime.datetime(2019, 1, 1)

# Calling the function
print((concat_string_and_datetime(string, datetime)))

#Example Output
# lilly2019-01-01 00:00:00

#Remember to inspect code for bugs.