import java.util.*;
import java.lang.*;
import java.io.*;
class Ideone
{
{
String str
= "role1@role2@role3@role4$arole"; String[] res
= str.
split("(?=[@$])"); }
}
aW1wb3J0IGphdmEudXRpbC4qOwppbXBvcnQgamF2YS5sYW5nLio7CmltcG9ydCBqYXZhLmlvLio7CmNsYXNzIElkZW9uZQp7CglwdWJsaWMgc3RhdGljIHZvaWQgbWFpbiAoU3RyaW5nW10gYXJncykgdGhyb3dzIGphdmEubGFuZy5FeGNlcHRpb24KCXsKCQlTdHJpbmcgc3RyID0gInJvbGUxQHJvbGUyQHJvbGUzQHJvbGU0JGFyb2xlIjsKCQlTdHJpbmdbXSByZXMgPSBzdHIuc3BsaXQoIig/PVtAJF0pIik7CgkJU3lzdGVtLm91dC5wcmludGxuKEFycmF5cy50b1N0cmluZyhyZXMpKTsKCX0KfQ==