Task: Program Execution
Input (English): w, f, W, 699, 4435, 3941, 7369, 5025, i, 6475, 4223, 7823, k, 8587, P, J, 3815, 6099, x, Y, W, 1529
Output (English): w, f, W, i, k, P, J, x, Y, W