Task: Program Execution
Input (English): 913 9021 b L 3393 3839 j 5063 3119 m 8733 5131 6077 7147 5183 7873 8231 x 4559 q A 953 E r V
Output (English): 3, 4, 7, 10, 18, 20, 21, 23, 24, 25