import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
class Ideone
{
{
String s
= "1aa[appleax]bb[appley]"; Pattern pattern = Pattern.compile("(?:\\G(?!^)|1)[a-z]*\\[([^\\]\\[]*)]");
Matcher matcher = pattern.matcher(s);
while (matcher.find()){
System.
out.
println(matcher.
group(1)); }
}
}
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