Task: Program Execution
Input (English): XvUtHweupAdAQJPVbMSWrFULrwHJMHIuaTUv, TssjZmupAdAQJPVbMSWrFZvQsTGcOVO
Output (English): a, b, d, e, f, h, i, j, l, m, p, q, r, s, t, u, v, w, x