INPUT :

 a = '''Mukesh Dhirubhai Ambani (born 19 April 1957) is an 

Indian billionaire businessman. He is the chairman and 

managing director of Reliance Industries Ltd. A

Fortune Global 500 company and India's most valuable 

company by market value.According to Bloomberg Billionaires

Index, Ambani's net worth is estimated at $83.4 billion 

as of February 2023.'''

print(a.upper())

b='''Narendra Damodardas Modi is an Indian politician

serving as the 14th and current Prime Minister of India 

since 2014. Modi was the Chief Minister of Gujarat from 

2001 to 2014 and is the Member of Parliament from Varanasi'''

print(b.lower())

OUTPUT :

MUKESH DHIRUBHAI AMBANI (BORN 19 APRIL 1957) IS AN 

INDIAN BILLIONAIRE BUSINESSMAN. HE IS THE CHAIRMAN AND 

MANAGING DIRECTOR OF RELIANCE INDUSTRIES LTD. A

FORTUNE GLOBAL 500 COMPANY AND INDIA'S MOST VALUABLE 

COMPANY BY MARKET VALUE.ACCORDING TO BLOOMBERG BILLIONAIRES

INDEX, AMBANI'S NET WORTH IS ESTIMATED AT $83.4 BILLION 

AS OF FEBRUARY 2023.

narendra damodardas modi is an indian politician

serving as the 14th and current prime minister of india 

since 2014. modi was the chief minister of gujarat from 

2001 to 2014 and is the member of parliament from varanasi