Task: Program Execution
Input (English): hLuHtQqzqyQNOYyWbUCXvakWfAiRRFk, hJAnSqyQNOYyWbUCXgioZHCdbvjNu
Output (English): a, b, c, f, h, i, k, l, n, o, q, r, t, u, v, w, x, y, z