Task: Program Execution
Input (English): ToltNzLpkdmxROAqYtDnFKKfPfuoydYvbZB, aDAmxROAqYtDnFKKiroLQkts
Output (English): a, b, d, f, k, l, m, n, o, p, q, r, t, u, v, x, y, z