Task: Program Execution
Input (English): I O 2645 8955 2723 6145 4321 1095 2711 1553 3861 D r 1731 6359 8241 5395 b A s P o 107 D 4653 7353 R S p t c i 6311 8323
Output (English): 9, 15, 2645, 8955, 2723, 6145, 4321, 1095, 2711, 1553, 3861, 4, 18, 1731, 6359, 8241, 5395, 2, 1, 19, 16, 15, 107, 4, 4653, 7353, 18, 19, 16, 20, 3, 9, 6311, 8323