Task: Program Execution
Input (English): lrdbXCvuiKwQlNuUYGCyfjSxWJro, KMvuiKwQlNuUYGlSwCczIkZmsA
Output (English): b, c, d, f, g, i, j, k, l, n, o, q, r, s, u, v, w, x, y