Task: Program Execution
Input (English): 2419 6413 T 7123 L 8769 6913 2223 E U y O O z 4923 s 7787 X v 4697 L N 9063 t I T 2159 X k L A 9743 X 953 9123 1739 221
Output (English): 1, 2, 4, 6, 7, 8, 15, 17, 20, 23, 27, 32, 34, 35, 36, 37