new_contents: import re
  import numpy as np
  from sequence_lcs_sim import LcsSim
  
  def ModelNumSim(s1, s2):
      numSet1 = set([i for i in re.split(r'\D+', s1) if i])
      numSet2 = set([i for i in re.split(r'\D+', s2) if i])
      print numSet1, numSet2
      if (numSet1 or numSet2) and (not numSet1.intersection(numSet2)):
          return 0
      return LcsSim(s1, s2)
  
subject: Create model_num_sim.py