import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

import java.io.BufferedReader;
import java.io.FileReader;


public class C {

  private boolean isR(int a, int b) {

    char[] sa = String.valueOf(a).toCharArray();
    char[] sb = String.valueOf(b).toCharArray();

    if (sa.length != sb.length) return false;
    int n = sa.length;

    for (int i = 1; i < n; i++) {
      boolean ok = true;
      for (int k = 0; k < n; k++) {
        char c = sb[(k + i) % n];
        if (c != sa[k]) {
          ok = false;
          break;
        }
      }
      if (ok) return true;
    }

    return false;
  }

  int count(int a, int b) {
    int c = 0;
    for (int i = a; i < b; i++) {
      for (int j = i + 1; j <= b; j++) {
        if (isR(i, j)) {
          c++;
        }
      }
    }
    return c;
  }

  private void main2(String[] args) throws Exception {
    BufferedReader br = new BufferedReader(new FileReader(args[0]));
    String line = br.readLine();
    int count = Integer.parseInt(line);
    for (int i = 0; i < count; i++) {
      line = br.readLine();
      int s = line.indexOf(' ');
      int a = Integer.parseInt(line.substring(0, s));
      int b = Integer.parseInt(line.substring(s + 1));
      System.out.println("Case #" + (i + 1) + ": " + count(a, b));
    }
    br.close();
  }

  public static void main(String[] args) throws Exception {
    new C().main2(args);
  }


}
