Task: Program Execution
Input (English): XekXXywrDLNuGpQGTRsgrTOyvUqkyiv, WejvjTDLNuGpQGTRsgrTEbTdENuaJG
Output (English): d, e, g, i, k, l, n, o, p, q, r, s, t, u, v, w, x, y