import java.util.Scanner;
public class MyName {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("abs==" + Math.abs(-1.1));
    }
}
import java.util.Scanner;
public class MyName {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("ceil==" + Math.ceil(-1.1));
    }
}
import java.util.Scanner;
public class MyName {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("ceil==" + Math.ceil(1.2));
    }
}
import java.util.Scanner;
public class MyName {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("ceil==" + Math.ceil(1.5));
    }
}
import java.util.Scanner;
public class MyName {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("ceil==" + Math.ceil(-1.9));
    }
}
public class MyName {
    public static void main(String[] args) {

        System.out.println("floor==" + Math.floor(1.9));
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("floor==" + Math.floor(-1.9));
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("round==" + Math.round(1.1));
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("round==" + Math.round(1.6));
    }
}
public class MyName {
    public static void main(String[] args) {

        System.out.println("sqrt==" + Math.sqrt(9));
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("sqrt==" + Math.sqrt(100));
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("Power==" + Math.pow(3, 10));
        System.out.println("Power==" + Math.pow(3, 4));
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("random==" + Math.random());//0.0<=value<1.0.
        System.out.println("random==" + Math.random());
    }
}
public class MyName {
    public static void main(String[] args) {
        double r = (Math.random() * ((10 - 1) + 1) + 1);
        // double r = (Math.random() * 11);
        System.out.println("random=" + r);
    }
}
import java.util.Random;
public class MyName {
    public static void main(String[] args) {
        int r = (int) (Math.random() * ((10 - 1) + 1) + 1);// use type casting
        // double r = (Math.random() * 11);
        System.out.println("random=" + r);
    }
}
import java.util.Random;
public class MyName {
    public static void main(String[] args) {
        int r = (int) (Math.random() * ((10 - 1) + 1) + 1);// use type casting
        // double r = (Math.random() * 11);
        System.out.println("random=" + r);
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("Max==" + Math.max(20, 30));
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("Max==" + Math.max(20.5, 30));
    }
}
public class MyName {
    public static void main(String[] args) {
        System.out.println("Max==" + Math.max(20.5, Math.max(30, 40)));
    }
}
import javax.swing.plaf.basic.BasicInternalFrameTitlePane.MaximizeAction;
public class MyName {
    public static void main(String[] args) {
        System.out.println("Pow=" + Math.pow((Math.sqrt(100)), 2));
    }
}