Task: Program Execution
Input (English): 1407 787 1355 t e 1349 G p W D 755 l 9237 f 101 4407 4393 6953 8263 R M 3555 d A 2493 7751 a u 2393 489 K 8109 o G 759 a 1479 b
Output (English): 1, 2, 3, 6, 11, 13, 15, 16, 17, 18, 19, 22, 25, 26, 29, 30, 32, 35, 37