Task: Program Execution
Input (English): RyBvDkVaOLSvWXBOAQOePmpoGejlFv, EcWIDdBZBwaOLSvWXBOAQOePSGVmJQaxarIx
Output (English): a, b, c, d, e, g, i, j, l, m, o, p, q, r, s, v, w, x, z