Task: Program Execution
Input (English): 5, 5, ['263', 'e', 'W', 'Z', 'e', '4327', 'D', '3497', 'Z', 'W', 'm', '1191', 'q', '6961', 'B', '3963', 'j', 'r', 'V', '4737', 'y', '3605', 'X', '1205', '1609', '1645', 'y', 'I']
Output (English): e, W, B, 4737, 1609