Task: Program Execution
Input (English): 3783 O K t u 6661 7885 k L f c 3023 19 3977 9155 Q y 1609 631 F 6887 W I n 4645 7941 k
Output (English): 1, 6, 7, 12, 13, 14, 15, 18, 19, 21, 25, 26