Task: Program Execution
Input (English): 3489 E L 1815 8339 7421 g P O 6219 2923 3669 193 3299 2389 c i O 7759 2163 w f 5503 l x 9267 5995 L 3443 6665 2307 1333 V
Output (English): 2, 3, 7, 8, 9, 16, 17, 18, 21, 22, 24, 25, 28, 33