Task: Program Execution
Input (English): 18, 19, ['R', '1121', 'l', '3573', 'w', '9761', '8825', '705', '9793', 'C', 'S', 'e', 'b', '4457', 'l', '5939', '8465', 'U', '5471', 'l', 'q', 'i', '5301', '8785', 'J', 'C', '877', 'J', '3375']
Output (English): U, 5471