val string
= "one493two483three" val pattern
= """(?<=two)\d+(?=three)""".
r pattern.findAllIn(string).foreach(println)
}
b2JqZWN0IE1haW4gZXh0ZW5kcyBBcHAgewp2YWwgc3RyaW5nID0gIm9uZTQ5M3R3bzQ4M3RocmVlIgp2YWwgcGF0dGVybiA9ICIiIig/PD10d28pXGQrKD89dGhyZWUpIiIiLnIKcGF0dGVybi5maW5kQWxsSW4oc3RyaW5nKS5mb3JlYWNoKHByaW50bG4pCgp9