Task: Program Execution
Input (English): 13, 20, ['699', 'W', 'L', 'g', '9023', 'H', 'N', '7089', '113', '1145', '3031', 'y', 'k', '1395', '7989', '2845', '4693', 'U', 'K', 'R', '9129']
Output (English): RKU4693284579891395k