Task: Program Execution
Input (English): rsuIxxJJpwgjEUshmBjhqDclAEO, bEnWPBVIZxxJJpwgjEUshmcGpLhEWozwXn
Output (English): b, c, e, g, h, i, j, l, m, n, o, p, s, u, v, w, x, z