Task: Program Execution
Input (English): 17, 18, ['x', '9773', 'K', 'V', 'A', 'x', 'b', '2271', 'j', '3725', '4683', 'v', '73', 'D', '7111', 'r', 'i', 'p', 'o', '9129', 'C', 'B', '7415']
Output (English): pi