first_name = 'Hajeong'
last_name = 'Jeon'

first_name1=first_name.lower()
last_name1=last_name.lower()

login_id = first_name1[0]+last_name1[:]

print('login_id : {}'.format(login_id))


"""

log_id=first_name[0]+last_name

log_id=log_id.lower()

"""
