'''simple docstring'''




def __lowerCAmelCase			(							UpperCamelCase__    ,  UpperCamelCase__    ,  UpperCamelCase__    )     ->   float:
				if principal <= 0:
								raise Exception('''Principal borrowed must be > 0'''    )
				if rate_per_annum < 0:
								raise Exception('''Rate of interest must be >= 0'''    )
				if years_to_repay <= 0 or not isinstance(UpperCamelCase__    ,  UpperCamelCase__    ):
								raise Exception('''Years to repay must be an integer > 0'''    )

				# Yearly rate is divided by 12 to get monthly rate
				__lowerCamelCase          =  rate_per_annum / 12

				# Years to repay is multiplied by 12 to get number of payments as payment is monthly
				__lowerCamelCase          =  years_to_repay * 12

				return (
				    principal
				    * rate_per_month
				    * (1 + rate_per_month) ** number_of_payments
				    / ((1 + rate_per_month) ** number_of_payments - 1)
				)


if __name__ == "__main__":
		import doctest

		doctest.testmod()

'''simple docstring'''




def __lowerCAmelCase			(							UpperCamelCase__    )     ->   str:
    __lowerCamelCase          =  []
    __lowerCamelCase          =  set({'''(''', '''[''', '''{'''}    )
    __lowerCamelCase          =  set({''')''', ''']''', '''}'''}    )
    __lowerCamelCase          =  {'''{''': '''}''', '''[''': ''']''', '''(''': ''')'''}

    for i in range(len(UpperCamelCase__    )    ):
        if s[i] in open_brackets:
            stack.append(s[i]    )

        elif s[i] in closed_brackets and (
            len(UpperCamelCase__    ) == 0 or (len(UpperCamelCase__    ) > 0 and open_to_closed[stack.pop()] != s[i])
        ):
            return False

    return len(UpperCamelCase__    ) == 0






def __lowerCAmelCase			(							)     ->   Union[str, Any]:
    __lowerCamelCase          =  input('''Enter sequence of brackets: '''    )
    if is_balanced(UpperCamelCase__    ):
        print(UpperCamelCase__    ,  '''is balanced'''    )
    else:
        print(UpperCamelCase__    ,  '''is not balanced'''    )


if __name__ == "__main__":
  main()
