Task: Program Execution
Input (English): 3479, 8355, e, t, s, 257, Z, 5503, y, t, 6087, M, l, 1747, 5617, 877, P, o, H, 6159
Output (English): 3, 4, 5, 7, 9, 10, 12, 13, 17, 18, 19