import java.util.regex.*;
//--------------------^^
public class MyThingy {

\tpublic static void main(String[] args) {
\t\t
\t\tPattern p = Pattern.compile("a*b");
\t\tMatcher m = p.matcher("aaaaab");
\t\tboolean b = m.matches();
\t\t
\t\tSystem.out.println(b);
\t\tSystem.exit(0);
\t}
}