Task: Program Execution
Input (English): 10, 19, ['R', 'p', 'Y', 'c', 'l', 'f', 'b', '4577', '4687', '7461', 'j', 'K', 'n', 'x', '7631', 'j', '6813', '8079', 'p', 'X', '1851']
Output (English): 7461jKnx7631j68138079p