Task: Program Execution
Input (English): x, 5151, t, 8243, 971, V, d, 45, 6787, P, 2319, 6725, x, r, u, g, 9921, 8853, 249, 7881, W, x
Output (English): 24, 5151, 20, 8243, 971, 22, 4, 45, 6787, 16, 2319, 6725, 24, 18, 21, 7, 9921, 8853, 249, 7881, 23, 24