Task: Program Execution
Input (English): a, 7427, 2623, 8677, s, 7079, b, j, l, 6329, C, W, 3, J, m, u, b, 987, u, i, h, E, 5253, 7009
Output (English): 2, 3, 4, 6, 10, 13, 18, 23, 24