






import math

SCREAMING_SNAKE_CASE__		:							Union[str, Any] 				=				10
SCREAMING_SNAKE_CASE__		:							List[Any] 				=				7
SCREAMING_SNAKE_CASE__		:							Optional[Any] 				=				BALLS_PER_COLOUR * NUM_COLOURS





def  _lowerCamelCase						(						__lowerCamelCase = 20       ) ->			str:

     '''simple docstring'''
     UpperCAmelCase__      :  Dict				      =			math.comb(__lowerCamelCase ,							__lowerCamelCase       )
     UpperCAmelCase__      :  List[Any]				      =			math.comb(NUM_BALLS - BALLS_PER_COLOUR ,							__lowerCamelCase       )

     UpperCAmelCase__      :  Tuple				      =			NUM_COLOURS * (1 - missing_colour / total)

     return F"{result:.9f}"


if __name__ == "__main__":
      print(solution(20))









'''simple docstring'''





from typing import TYPE_CHECKING

from ...utils import _LazyModule


UpperCamelCase_    						=       {"""tokenization_byt5""": ["""ByT5Tokenizer"""]}


if TYPE_CHECKING:
							from .tokenization_byta import ByTaTokenizer
else:
							import sys

							UpperCamelCase_    						=       _LazyModule(__name__, globals()["""__file__"""], _import_structure, module_spec=__spec__)





