Task: Program Execution
Input (English): 6, 12, ['B', '9943', 'k', '8107', '751', 'Y', 'c', '2785', 't', '5225', 'x', '4709', '5081', '2259', 'f', 'M', 'W', '5413', 'a', '9131', 'F', 'n', '29', '5941', 'J', '533', '7187']
Output (English): 9074x5225t5872cY