Task: Program Execution
Input (English): 1, 4, ['W', '1163', '2815', 'u', 'Z', 'K', '1495', 'r', '9493', 'V', 'S', 'J', 'z', '9401', 'o', '4421', '6505', 'I', '5925', '6713']
Output (English): u, 2815, 1163, W