Task: Program Execution
Input (English): 9, 15, ['g', '7463', 'f', '2919', 'R', '9857', '7491', 'k', '1121', '6635', 'n', 'a', 'b', 'J', 'Y', 'z', '7681', 'D']
Output (English): 1121, 6635, n, a, b, J, Y