Task: Program Execution
Input (English): y, 6413, b, D, L, 1807, D, 1331, t, O, 1587, 2227, 7045, C, L, J, 5843, 8773, 9837, 8395, w
Output (English): 1, 3, 4, 5, 7, 9, 10, 14, 15, 16, 21