Task: Program Execution
Input (English): 11, 21, ['9615', '7645', 'Y', 'i', '1521', 'a', '851', 'A', 'K', '8085', 'B', 'u', 'a', 'L', '8907', '7269', 'v', 'D', 'x', '2757', 'D', '8567', 'L', '7869', '7813', '4499']
Output (English): D2757xDv72698907LauB