for n in range(1,256): 
     s = bin(n)[2:] 
     if len(s) < 8: 
         s = '0' * (8 - len(s)) + s 
     s = s.replace('1', '*') 
     s = s.replace('0', '1') 
     s = s.replace('*', '0') 
     if int(s, 2) == 211: 
         print(n) 
 

 
 for n in range(1, 256): 
   s = "{:08b}".format(n) 
   s = s.replace('1', '*') 
   s = s.replace('0', '1') 
   s = s.replace('*', '0') 
   if int(s,2) == 211: 
     print( n ) 
 

 
 for n in range(1,256): 
      s = bin(n)[2:].zfill(8) 
      num=s.rindex('1') 
      for i in range(num): 
          if s=='1': s=s[:i]+'0'+s[i+1:] 
          else: s=s[:i]+'1'+s[i+1:] 
      if int(s, 2) == 211: 
          print(n)