Task: Program Execution
Input (English): 21, 27, ['1369', 'S', '9101', 'A', 'H', '7265', 'D', 'K', 'R', '7939', '4757', 'F', 'b', 'j', 'G', '3071', '29', '9105', '5915', 'k', 'X', '3849', 'Z', '4845', '7147', '6861', '8553', 'm', 'Q', '5973']
Output (English): X3849Z4845714768618553