Task: Program Execution
Input (English): wQkyoKNXFMAHGxWHGTcxMMXxPyZncaEtRuNIjaC, XNGLFlMHKcJWCxWHGTcxMMXxPyBqVAXeY
Output (English): a, c, e, f, g, h, i, j, k, m, n, o, p, q, r, t, u, w, x, y, z