Task: Program Execution
Input (English): IisqpzBLJpkMZLRiHJlRxrPJuWA, EeOZqpzBLJpkMZLRiHJybmrwHyWfJWni
Output (English): b, e, f, h, i, j, k, l, m, n, o, p, q, r, w, y, z