def    lowerCAmelCase_  (		lowercase:				int = 1_000_000		)     ->					int:







 '''simple docstring'''
 _UpperCamelCase:  Any    						=			1
 _UpperCamelCase:  Any    						=			1
 _UpperCamelCase:  Optional[int]    						=			{1: 1}

 for inputa in range(2	,       lowercase		):
  _UpperCamelCase:  Tuple    						=			0
  _UpperCamelCase:  int    						=			inputa

  while True:
   if number in counters:
    counter += counters[number]
    break
   if number % 2 == 0:
    number //= 2
    counter += 1
   else:
    _UpperCamelCase:  int    						=			(3 * number) + 1
    counter += 1

  if inputa not in counters:
   _UpperCamelCase:  int    						=			counter

  if counter > pre_counter:
   _UpperCamelCase:  Any    						=			inputa
   _UpperCamelCase:  Union[str, Any]    						=			counter
 return largest_number


if __name__ == "__main__":
  print(solution(int(input().strip())))
# coding=utf-8
# Copyright 2023 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# this script dumps information about the environment

import os
import platform
import sys


UpperCAmelCase_           =				'''3'''

print('''Python version:''', sys.version)

print('''OS platform:''', platform.platform())
print('''OS architecture:''', platform.machine())

try:
  import torch

  print('''Torch version:''', torch.__version__)
  print('''Cuda available:''', torch.cuda.is_available())
  print('''Cuda version:''', torch.version.cuda)
  print('''CuDNN version:''', torch.backends.cudnn.version())
  print('''Number of GPUs available:''', torch.cuda.device_count())
except ImportError:
  print('''Torch version:''', None)

try:
  import transformers

  print('''transformers version:''', transformers.__version__)
except ImportError:
  print('''transformers version:''', None)