public class Treyg {
    public static void main (String[] args){

        String line1 = "Vladislav";
        String line2 = "ladis";
            char a[] = new char[line1.length()];
            char b[] = new char[line2.length()+10];

            for(int i = 0; i<line1.length(); i++){
                a[i]=line1.charAt(i);

            }

            for(int j = 0; j<line2.length(); j++){
                b[j]=line2.charAt(j);

            }
            int k = 0;
            int ps = 0;
            for(int j = 0; j<line2.length(); j++){
                j = 0;
                k = 0;

                for(int i = 0; i<line1.length(); i++){

                    if(b[j]==a[i]){
                        j = j+1;
                        k++;
                    }
                        System.out.println(k);

                }
            }
            if(k==line2.length()){
                System.out.println("DA");
            }else{
                System.out.println("net");
            }

    }
}