Task: Program Execution
Input (English): X g 2133 469 3405 f 1221 1331 W 7005 J 5647 8683 2031 9399 N Y A 5721 9081 1607 9521 757 d 9511 7075 H 2387 9271 l 6755 4241 417 G c c 8905 J
Output (English): 3, 4, 5, 7, 8, 10, 12, 13, 14, 15, 19, 20, 21, 22, 23, 25, 26, 28, 29, 31, 32, 33, 37