Task: Program Execution
Input (English): 8247, h, 4417, H, 6739, B, W, 3193, Y, 3315, L, 4529, Z, 4069, i, 8307, H, i, 6525, 1873, 3937, E
Output (English): 1, 3, 5, 8, 10, 12, 14, 16, 19, 20, 21