Task: Program Execution
Input (English): RRagzWatwOswpAnhXroLULUQK, BdzXWatwOswpAnhXroCCXZYJdcvulUzR
Output (English): a, b, c, d, h, j, l, n, o, p, r, s, t, u, v, w, x, y, z