import java.util.*;
import java.util.regex.*;
import java.lang.*;
import java.io.*;
class Ideone
{
{
String matchingBlock
= "^8+0+(\\d{3})"; boolean hh = s.matches(matchingBlock);
System.
out.
println(hh
); // [NYK:1100][CLT:2300][KTY:3540] }
}
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