Task: Program Execution
Input (English): 21, 27, ['7457', 'Z', '1693', '2365', 'N', '6369', 'L', 'Z', '4729', '4623', '1017', 'f', 'c', 'v', 'p', 'B', 'B', 'M', 'n', '7339', 'u', '889', 'N', '1753', '6945', '6421', '153', '9529', 'o']
Output (English): u, 889, N, 1753, 6945, 6421, 153