"""
Hello World Handler
===================

Print a salutation message in upper case in hi()
      with the provided argument (location).
"""


def hi(location):
    """Print a message in upper case
       after concatenating variables of salutation and where

    Args:
        location (str): The string value which is assigned to where

    """

    # Concatenation
    message = '{salutation} {where}'.format(salutation='hello', where=location)
    print(message.upper())

if __name__ == '__main__':
    hi('world')