Task: Program Execution
Input (English): 855, 7721, c, 9515, J, 203, v, 7427, d, 9949, 8421, 7735, F, W
Output (English): 855, 7721, 3, 9515, 10, 203, 22, 7427, 4, 9949, 8421, 7735, 6, 23