Task: Program Execution
Input (English): fjJrjWVbELyTZpuLoUQkwPDwEMEON, kFPTKVVbELyTZpuLoUYdZKtgMWiD
Output (English): b, d, e, f, j, k, l, m, n, o, p, q, r, t, u, v, w, y, z