import java.util.Scanner;

/**
 * Created by Alumis on 2015/04/15.
 */
public class DecimalTest {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        double num = input.nextDouble();

        if(num%2==0){
            num += 0.0001;
        } else {
            num -= 0.0001;
        }

        System.out.println("decimal");
        System.out.println(num);

    }
}