public class Util {
    public static double getDistance(int x1, int y1, int x2, int y2) {
       double a = ((y2 - y1) * (y2 - y1)) + ((x1 - x2) * (x1 - x2));
       return (double) Math.sqrt(a);
    }

    public static void main(String[] args) {

    }
}