import java.util.*; public class draw{ public static void main(String... args){ Scanner scan = new Scanner(System.in); int x = scan.nextInt(),y = scan.nextInt(); int xx = x*x,yy = y*y; double r; r = Math.sqrt(xx+yy); if(r%10!=0){ System.out.println(Math.ceil(r)); return; }else{ System.out.println(r); return; } } }