Task: Program Execution
Input (English): 10, 13, ['P', 'Z', 'M', '1291', '5321', 'v', '2159', '7275', 'p', '4401', 'X', 's', 'W', '1803', 'G', 'E', 'B', '2231', '3397', 'J']
Output (English): 4401, X, s, W