Task: Program Execution
Input (English): 11, 22, ['2949', '9987', '7777', 'L', '4927', '2833', '9517', 'B', '5187', 'A', '1549', '9749', '6265', 'P', '3063', '327', '5899', '6479', '3363', 'I', '1213', 'a']
Output (English): 154997496265P3063327589964793363I1213a