Task: Program Execution
Input (English): 1, 13, ['K', 'O', 'I', '5587', '2301', '5083', '6683', '1973', 'r', 'S', 'Q', 'B', 'q', '1845', 'z', '8501']
Output (English): KOI55872301508366831973rSQBq