Tell me, please replace the for in Range on while ?

def what (a, b):
   RES = A.
   For i in Range (b):
     Res = Res + 1
   Return Res.

Answer 1, Authority 100%

as option

def what (a, b):
   RES = A.
   While B:
     Res = Res + 1
     B - = 1
   Return Res.

Answer 2

def what (a, b):
  RES = A.
  i = 0.
  While I & LT; B:
   res + = 1
   I + = 1
  Return Res.