Task: Program Execution
Input (English): 1, 18, ['G', '8555', '1525', '1893', '9367', '5747', '4885', '6841', '795', 'H', '977', '4583', 'b', 'P', 'T', 'H', 'L', 'u', 'r', '4339']
Output (English): uLHTPb3854779H5971486588474757639398152515558G