comefrom: <doocs>1048.Longest String Chain_1.py
code: def check(w1, w2):
      if len(w2) - len(w1) != 1:
          return False
      i = j = cnt = 0
      while i < len(w1) and j < len(w2):
          if w1[i] != w2[j]:
              cnt += 1
          else:
              i += 1
          j += 1
      return cnt < 2 and i == len(w1)
masked: def sample_funcname ( var_0 , var_1 ) :
      if len ( var_1 ) - len ( var_0 ) != 1 :
          return False
      var_8 = var_5 = var_6 = 0
      while var_8 < len ( var_0 ) and var_5 < len ( var_1 ) :
          if var_0 [ var_8 ] != var_1 [ var_5 ] :
              var_6 += 1
          else :
              var_8 += 1
          var_5 += 1
      return var_6 < 2 and var_8 == len ( var_0 )
  