Task: Program Execution
Input (English): 2967, 3379, V, t, s, 4521, 7915, h, 6463, V, b, Z, 8043, 2445, 1981, 5085, 1189, e, 8253, 4399, u, 2845
Output (English): 3, 4, 5, 8, 10, 11, 12, 18, 21