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());
    }
}

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