Task: Program Execution
Input (English): 5541, C, 1387, 9791, D, 8687, 4455, 2901, 3763, 4959, 2383, 3965, v, 439, 6997
Output (English): 1, 3, 4, 6, 7, 8, 9, 10, 11, 12, 14, 15