Task: Program Execution
Input (English): 7, ['H', 'R', '6555', 'Q', 'D', 'Z', '3071', 'a', '9825', '6159', 'Z', '2415', '1353', '8715', 'E', 'h', 'F', '2513', 'F', 'Q', '4737', '9679', '9303', '7463', 'b', 'd', 'i', '4809', 'U', 'x', '733', '4961']
Output (English): H, a, E, 9679, U