Task: Program Execution
Input (English): 12, 21, ['E', 'P', '41', 'o', '5953', 'P', '3671', 'l', '37', 'C', '7641', 't', '6143', 'L', 'S', 'N', '7723', '725', '8859', '483', 'u']
Output (English): u38495885273277NSL3416t