import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

class DegreeToRadian
{
  public static final double PI= 3.141592653589793;
  public double radian(double deg)
  {
    double rad = (deg*(PI / 180));
    return rad;
  }
  public static void main (String arr[]) throws IOException
   {
     DegreeToRadian rd = new DegreeToRadian();
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
     System.out.println("Enter the value in degree(s)");
     double degree = Double.parseDouble(br.readLine());
     System.out.println("degree '"+degree+"' = "+rd.radian(degree)+" radian");
   }
}