Task: Program Execution
Input (English): cZfnszrwNLIopaFwCRKcFfrFcbZEqEMlwJ, WajFAQLMoSrwNLIopaFwCRKcFPa
Output (English): a, b, c, e, f, i, j, k, l, m, n, o, p, q, r, s, w, z