Task: Program Execution
Input (English): FZvUjHvQcbKnXrKZdImRpEEKxWQm, YuPRcHjyNmcbKnXrKZdImjlT
Output (English): b, c, d, e, f, h, i, j, k, m, n, p, q, r, u, v, w, x, z