comefrom: <garvit244>14_1.py
code: def prefix(strs, index):
      check_prefix = strs[0][:index]
      for index in range(1, len(strs)):
          if not strs[index].startswith(check_prefix):
              return False
      return True
masked: def sample_funcname ( var_0 , var_1 ) :
      var_3 = var_0 [ 0 ] [ : var_1 ]
      for var_1 in range ( 1 , len ( var_0 ) ) :
          if not var_0 [ var_1 ].startswith ( var_3 ) :
              return False
      return True
  