def Odd_Length_Sum(arr):
    
    Sum = 0
    l = len(arr)
    for i in range(l):
        Sum += ((((i + 1) *(l - i) + 1) // 2) * arr[i])
    return Sum
def similar_elements(test_tup1, test_tup2):
  
  res = tuple(set(test_tup1) & set(test_tup2))
  return (res) 