Task: Program Execution
Input (English): 6, 20, ['839', '5913', 'M', '9969', '3199', '9139', '2949', 'L', 'q', '1811', 'f', 'A', 'W', 'A', '7307', '3459', 'e', 'r', 'r', '2441', 'P', 'd']
Output (English): 1442rre95437037AWAf1181qL94929319