Task: Program Execution
Input (English): VxlRTxfogMjwtRxcssImqQMbRKBAGlhlgQSmaff, fMfXRxcssImqQMbRKBJSCsWApKcp
Output (English): a, b, c, f, g, h, i, j, k, l, m, o, q, r, s, t, v, w, x