comefrom: <garvit244>301_1.py
code: def isValid(s):
      count = 0
      for char in s:
          if char == '(':
              count += 1
          elif char == ')':
              count -= 1
          if count < 0:
              return False
      return (count==0)
masked: def sample_funcname ( var_0 ) :
      var_2 = 0
      for var_3 in var_0 :
          if var_3 == '(' :
              var_2 += 1
          elif var_3 == ')' :
              var_2 -= 1
          if var_2 < 0 :
              return False
      return ( var_2 == 0 )
  