


'''simple docstring'''






import importlib
import sys
from argparse import REMAINDER, ArgumentParser
from pathlib import Path

import torch_xla.distributed.xla_multiprocessing as xmp


def  _snake_case       (					)						->   List[str]:
							lowerCAmelCase__	       =     ArgumentParser(
							    description=(
							        '''PyTorch TPU distributed training launch '''
							        '''helper utility that will spawn up '''
							        '''multiple distributed processes'''
							    )	)

							# Optional arguments for the launch helper
							parser.add_argument('''--num_cores'''			,   type=A			,   default=1			,   help='''Number of TPU cores to use (1 or 8).'''	)

							# positional
							parser.add_argument(
							    '''training_script'''			,   type=A			,   help=(
							        '''The full path to the single TPU training '''
							        '''program/script to be launched in parallel, '''
							        '''followed by all the arguments for the '''
							        '''training script'''
							    )			,   )

							# rest from the training program
							parser.add_argument('''training_script_args'''			,   nargs=A	)

							return parser.parse_args()


def  _snake_case       (					)						->   Dict:
							lowerCAmelCase__	       =     parse_args()

							# Import training_script as a module.
							lowerCAmelCase__	       =     Path(args.training_script	)
							sys.path.append(str(script_fpath.parent.resolve()	)	)
							lowerCAmelCase__	       =     script_fpath.stem
							lowerCAmelCase__	       =     importlib.import_module(A	)

							# Patch sys.argv
							lowerCAmelCase__	       =     [args.training_script] + args.training_script_args + ['''--tpu_num_cores''', str(args.num_cores	)]
							xmp.spawn(mod._mp_fn			,   args=()			,   nprocs=args.num_cores	)


if __name__ == "__main__":
		main()



'''simple docstring'''






def  _snake_case       (					A = 10			,   A = 22	)						->   int:
							lowerCAmelCase__	       =     range(1			,   A	)
							lowerCAmelCase__	       =     range(1			,   A	)
							return sum(
							    1 for power in powers for base in bases if len(str(base**power	)	) == power	)


if __name__ == "__main__":
		print(f"""{solution(10, 22) = }""")