def remove_odd(str1):
 
 str2 = ''
 for i in range(1, len(str1) + 1):
    if(i % 2 == 0):
        str2 = str2 + str1[i - 1]
 return str2
def similar_elements(test_tup1, test_tup2):
  
  res = tuple(set(test_tup1) & set(test_tup2))
  return (res) 