Task: Program Execution
Input (English): 6291, f, 3791, 1765, b, 5809, V, O, p, Y, 9025, s, E, 691, X, B, K, S, 4549
Output (English): 6291, 6, 3791, 1765, 2, 5809, 22, 15, 16, 25, 9025, 19, 5, 691, 24, 2, 11, 19, 4549