import java.util.*;
import java.util.zip.*;
import java.util.List;
import java.util.regex.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.locks.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import java.io.*;
import java.net.*;
import java.lang.reflect.*;
import java.lang.ref.*;
import java.lang.management.*;
import java.security.*;
import java.security.spec.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
import java.math.*;
import java.awt.geom.AffineTransform;

class main {



static void rotateGraphicsClockwise_radians(Graphics2D g, double angle) {
  AffineTransform at = g.getTransform();
  at.rotate(-degToRadian(angle));
  g.setTransform(at);
}
static double degToRadian(double deg) {
  return degreeToRadian(deg);
}




static double degreeToRadian(double deg) {
  return deg*(pi()/180);
}




static double pi() {
  return Math.PI;
}



}