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import java.util.regex.Pattern;
import java.util.regex.Matcher;
public class Main
{
private static final Pattern pattern = Pattern.compile("^[\\w][\\S]{0,8}$", Pattern.MULTILINE);
public static void main(String[] args) {
final String string = "Hello!@+\n"
+ "t123123\n"
+ "H123!#\n"
+ "@adadsa\n"
+ "@3asdasd\n"
+ "%sdf\n"
+ "Helloworld1";
Matcher matcher = pattern.matcher(string);
while(matcher.find())
System.out.println(matcher.group(0));
}
}
