Task: Program Execution
Input (English): 7, 11, ['9753', 'u', 'm', '4857', '7073', '1983', 'W', '1909', 'H', 't', 'D', '1897', 'b', '2473', '3915', '3809', '5681', '3559', '9953', '3719', '9937', '6239', 'c', 'n', '417', '4279', '7973', '9387']
Output (English): W1909HtD