english: And if there were four letters going to Singapore, there would be eight ways to mix them up so that exactly one is going to the right place: 1,3,4,2; 1,4,2,3; 3,2,4,1; 4,2,1,3; 2,4,3,1; 4,1,3,2; 2,3,1,4; and 3,1,2,4.
non_english: ANG 862,439 ANG 1,027,086 ANG 1,190,881 ANG 1,339,376 ANG 1,386,924 ANG 1,542,486 ANG 1,624,882 ANG 1,816,637 ANG 1,864,645 ANG 2,001,743 ANG 2,042,284 ANG 2,298,861