Task: Program Execution
Input (English): 2427 5921 B 1089 4813 1001 2533 t E 1975 M D 9339 n 6387 z X 5655 9735 3621 2997 4787 2835 1091 777 W 9001
Output (English): B, t, E, M, D, n, z, X, W