Task: Program Execution
Input (English): 3, 18, ['X', '9695', '7627', 'K', '4481', '1239', '2743', 'H', '1251', '63', 'B', '2379', 'l', 'X', 'w', '5359', '3431', 'C', 'd', '8325', '2271', '1621', 'I', '3893', 'n']
Output (English): C13439535wXl9732B361521H347293211844K7267