import java.math.*;
class Example
{
{
System.
out.
println(a.
add(b
).
add(c
).
add(d
)); }
}
aW1wb3J0IGphdmEubWF0aC4qOwoKY2xhc3MgRXhhbXBsZQp7CglwdWJsaWMgc3RhdGljIHZvaWQgbWFpbiAoU3RyaW5nW10gYXJncykgdGhyb3dzIGphdmEubGFuZy5FeGNlcHRpb24KCXsKCQlCaWdEZWNpbWFsIGEgPSBuZXcgQmlnRGVjaW1hbCgiMjU5NS4wMCIpOwoJCUJpZ0RlY2ltYWwgYiA9IG5ldyBCaWdEZWNpbWFsKCItMTc2MC43NiIpOwoJCUJpZ0RlY2ltYWwgYyA9IG5ldyBCaWdEZWNpbWFsKCItODM0LjAwIik7CgkJQmlnRGVjaW1hbCBkID0gbmV3IEJpZ0RlY2ltYWwoIi0uMjQiKTsKCQkKCQlTeXN0ZW0ub3V0LnByaW50bG4oYS5hZGQoYikuYWRkKGMpLmFkZChkKSk7Cgl9Cn0=