import java.util.regex.Pattern;

public class Main {
    public static void main(String[] args) {
        Pattern p = Pattern.compile("casa", Pattern.CASE_INSENSITIVE);
        System.out.println(p.matcher("Casa").matches());
        System.out.println(p.matcher("CaSa").matches());
        System.out.println(p.matcher("CAsA").matches());
        System.out.println(p.matcher("casa").matches());
        System.out.println(p.matcher("CaSA").matches());
        System.out.println(p.matcher("Sopa").matches());
        System.out.println(p.matcher("Carro").matches());
        System.out.println(p.matcher("Verde").matches());
    }
}