Task: Program Execution
Input (English): 4, 18, ['9857', 'p', 'P', '9991', 'H', 'r', 'q', 'T', 'A', 'K', '2845', 'b', '7435', 'Z', 'o', 'n', 'B', 'x', '8471', 'P', '9457', 'T']
Output (English): x, B, n, o, Z, 7435, b, 2845, K, A, T, q, r, H, 9991