Task: Program Execution
Input (English): 14, 21, ['3829', 'b', 'U', 'f', '4939', 'k', '7855', 'm', '6179', '7031', '3177', 'T', 'G', 't', '5265', 'L', '245', '2387', '2039', '5281', '3903', '8701']
Output (English): 3903528120392387245L5265t