Task: Program Execution
Input (English): 8121, 6039, 2827, w, d, 8511, Q, F, 5487, 4333, c, 129, Z, d, S, i, 9415, 4295, 4045, 8911, 6853, 3037, r, 6745
Output (English): w, d, Q, F, c, Z, d, S, i, r