Task: Program Execution
Input (English): oXzNIoULMrbiAaNAhADPfyRjaOyBlKOiSXMf, wIiAaNAhADPfyRjXgmYGOlz
Output (English): a, b, d, f, h, i, j, k, l, m, n, o, p, r, s, u, x, y, z