import java.util.Scanner;
public class POJ_1870 {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
while(true){
int a = scan.nextInt();
int b = scan.nextInt();
if(a==0&&b==0)
break;
A3 p = new A3(0,0);
p = cal(a);
A3 p1 = new A3(p.x,p.y);
p = cal(b);
A3 p2 = new A3(p.x,p.y);
int x = p1.x-p2.x;
int y = p1.y-p2.y;
int ans;
if(x*y<=0)
ans = Math.max(Math.abs(x), Math.abs(y));
else
ans = Math.abs(x+y);
System.out.printf("The distance between cells %d and %d is %d.",a,b,ans);
System.out.println();
}
}
public static A3 cal(int a) {
if(a == 1){
return new A3(0,0);
}
int x;
int y;
int n = 0;
while(3*(n-1)*n+1<a) // 3*(n-1)*n+1 为第n圈最后一个数
n++;
n--;
a -= 3*(n-1)*n+1;
if(a<=n){ // 详细注释见我的 poj 2265
x = n;
y = -a;
}else if(a>n&&a<=2*n){
x = 2*n-a;
y = -n;
}else if(a>2*n&&a<=3*n){
x = 2*n-a;
y = -n-x;
}else if(a>3*n&&a<=4*n){
x = -n;
y = a-3*n;
}else if(a>4*n&&a<=5*n){
x = a-5*n;
y = n;
}else{
x = a-5*n;
y = n-x;
}
A3 p = new A3(x,y);
return p;
}
}
class A3{
int x;
int y;
public A3(int x, int y) {
super();
this.x = x;
this.y = y;
}
}