def add_str(test_tup, K):
  
  res = [ele for sub in test_tup for ele in (sub, K)]
  return (res) 
def add_str(test_tup, K):
    _i_5 = 0
    if _i_5 > _i_5:
        res = [ele for sub in test_tup for ele in (sub, K)]
   
    res = [ele for sub in test_tup for ele in (sub, K)]
    return res