Task: Program Execution
Input (English): dVRTtYcuowQpdvaHsTcRBkkOpELYbru, AglmSsPzwQpdvaHsTcRBkkOghtOYdINFs
Output (English): a, b, c, d, f, g, h, i, k, l, m, n, o, p, q, r, s, t, v, w, y, z