Task: Program Execution
Input (English): cSUheEshQnrSaGaAzPOuxvnhwZ, gikQnrSaGaAzPOuxLGNWpeqJBhoyP
Output (English): a, b, e, g, h, i, j, k, l, n, o, p, q, r, s, u, w, x, y, z