Task: Program Execution
Input (English): 16, 21, ['k', 'u', '2821', 'Q', 'e', '2573', 'k', '4103', 'l', '2471', 'N', '6789', 'X', 'D', 'u', 'H', 'F', 'N', 'f', '7717', '7417', '9877', 'J', 'd', 'r', 'Y', '5271', 'x', '7033', '7421']
Output (English): H, F, N, f, 7717, 7417