Task: Program Execution
Input (English): 7, 15, ['4613', 'f', '5163', 'f', '333', 'B', '1409', 'Z', 'P', '7269', 'Y', '1691', 'W', 'E', '1563', '7647', 'g', 'a', 'V', '8087', 'C', '6903', '4233']
Output (English): 1409ZP7269Y1691WE1563