def first_Repeated_Char(str):
     
    h = {}
    for ch in str:
        if ch in h: 
            return ch;
        else: 
            h[ch] = 0
    return '\0'
def similar_elements(test_tup1, test_tup2):
  
  res = tuple(set(test_tup1) & set(test_tup2))
  return (res) 