Task: Program Execution
Input (English): nwRIdvoiOvuzPkIhOSOPlqjYKIJNVOE, OFXjtHlVXQqQvoiOvuzPkIhOSqfEcZku
Output (English): c, e, f, h, i, j, k, l, o, p, q, s, t, u, v, x, z