



def        a( A			:       str			)						->			int:
					"""simple docstring"""





					a   	=  str(A			).strip()
					if not bin_string:
										raise ValueError("Empty string was passed to the function"			)
					a   	=  bin_string[0] == "-"
					if is_negative:
										a   	=  bin_string[1:]
					if not all(char in "01" for char in bin_string			):
										raise ValueError("Non-binary value was passed to the function"			)
					a   	=  0
					for char in bin_string:
										a   	=  2 * decimal_number + int(A			)
					return -decimal_number if is_negative else decimal_number


if __name__ == "__main__":
				from doctest import testmod

				testmod()


"""simple docstring"""

import math
from itertools import permutations






def 				A		(							snake_case :int						) ->      bool:

 if 1 < number < 4:
  # 2 and 3 are primes
  return True
 elif number < 2 or number % 2 == 0 or number % 3 == 0:
  # Negatives, 0, 1, all even numbers, all multiples of 3 are not primes
  return False

 # All primes number are in format of 6k +/- 1
 for i in range(5							,   int(math.sqrt(snake_case						) + 1						)							,   6						):
  if number % i == 0 or number % (i + 2) == 0:
   return False
 return True






def 				A		(							snake_case :int							,   snake_case :list						) ->      bool:
 __UpperCamelCase    ,      __UpperCamelCase							    =			0, len(snake_case						) - 1
 while left <= right:
  __UpperCamelCase							    =			(left + right) // 2
  if prime_list[middle] == target:
   return True
  elif prime_list[middle] < target:
   __UpperCamelCase							    =			middle + 1
  else:
   __UpperCamelCase							    =			middle - 1

 return False






def 				A		(							) ->      int:
 __UpperCamelCase							    =			[n for n in range(1_0_0_1							,   1_0_0_0_0							,   2						) if is_prime(snake_case						)]
 __UpperCamelCase							    =			[]

 for number in prime_list:
  __UpperCamelCase							    =			[]

  for prime_member in permutations(list(str(snake_case						)						)						):
   __UpperCamelCase							    =			int(''.join(snake_case						)						)

   if prime % 2 == 0:
    continue

   if search(snake_case							,   snake_case						):
    tmp_numbers.append(snake_case						)

  tmp_numbers.sort()
  if len(snake_case						) >= 3:
   candidates.append(snake_case						)

 __UpperCamelCase							    =			[]
 for candidate in candidates:
  __UpperCamelCase							    =			len(snake_case						)
  __UpperCamelCase							    =			False

  for i in range(snake_case						):
   for j in range(i + 1							,   snake_case						):
    for k in range(j + 1							,   snake_case						):
     if (
         abs(candidate[i] - candidate[j]						)
         == abs(candidate[j] - candidate[k]						)
         and len({candidate[i], candidate[j], candidate[k]}						) == 3
     ):
      passed.append(
          sorted([candidate[i], candidate[j], candidate[k]]						)						)
      __UpperCamelCase							    =			True

     if found:
      break
    if found:
     break
   if found:
    break

 __UpperCamelCase							    =			set()
 for seq in passed:
  answer.add(''.join([str(snake_case						) for i in seq]						)						)

 return max(int(snake_case						) for x in answer						)


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



