






"""simple docstring"""



def      _lowerCAmelCase		(							UpperCAmelCase__       :					int = 5_0      )		->int:
						A__						:  int		  =  [1] * (length + 1)

						for row_length in range(length + 1      ):
												for tile_length in range(2,						5      ):
																		for tile_start in range(row_length - tile_length + 1      ):
																								ways_number[row_length] += ways_number[
																								    row_length - tile_start - tile_length
																								]

						return ways_number[length]


if __name__ == "__main__":
						print(F'{solution() = }')














"""simple docstring"""



import os

try:
						from .build_directory_md import good_file_paths
except ImportError:
						from build_directory_md import good_file_paths  # type: ignore

A_    =							list(good_file_paths())
assert filepaths, "good_file_paths() failed!"

A_    =							[file for file in filepaths if file != file.lower()]
if upper_files:
						print(F'{len(upper_files)} files contain uppercase characters:')
						print('''\n'''.join(upper_files) + '''\n''')

A_    =							[file for file in filepaths if ''' ''' in file]
if space_files:
						print(F'{len(space_files)} files contain space characters:')
						print('''\n'''.join(space_files) + '''\n''')

A_    =							[file for file in filepaths if '''-''' in file]
if hyphen_files:
						print(F'{len(hyphen_files)} files contain hyphen characters:')
						print('''\n'''.join(hyphen_files) + '''\n''')

A_    =							[file for file in filepaths if os.sep not in file]
if nodir_files:
						print(F'{len(nodir_files)} files are not in a directory:')
						print('''\n'''.join(nodir_files) + '''\n''')

A_    =							len(upper_files + space_files + hyphen_files + nodir_files)
if bad_files:
						import sys

						sys.exit(bad_files)






