Task: Program Execution
Input (English): 13, 21, ['6381', 'K', 'u', '1051', '5633', 'W', '4267', '639', '1409', '8775', '7317', 'q', '7511', '5323', '2905', '7047', '3375', 'X', 'p', 'X', 'w', 'q', 'c', '1425', '1833', '2175', 'z']
Output (English): 7511, 5323, 2905, 7047, 3375, X, p, X, w