Task: Program Execution
Input (English): UcBiQwYXTlcPVJQkOLBtWoSJXg, PjvBSVmoNHbZfTlcPVJQkOLBtWoSvVSvlqbByrUI
Output (English): b, c, f, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, y, z