import java.util.HashSet;
import java.util.Scanner;

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

package google.codejam;

import java.util.HashMap;

public class RecycledNumberSolver implements GoogleSolver {

  @Override
  public String solve(String str) {
    String [] numbers = str.split(" ");
    int min = Integer.parseInt(numbers[0]);
    int max = Integer.parseInt(numbers[1]);
    int digits = numbers[0].length();
    System.out.println("min:"+min + " max:"+ max);
    HashMap<Integer, Integer> map = new HashMap<Integer, Integer>();
    
    int count = 0;
    for(int i=min; i<=max ; i++){
      for(int move=1 ; move<digits ; move++){
        String temp = i+"";
        String test = temp.substring(temp.length()-move) + temp.substring(0, temp.length()-move);
        
        int testNum = Integer.parseInt(test);
        if(testNum>i && testNum>=min && testNum<=max){
          //System.out.println("("+temp + " , " +  testNum+ ")");
          if(map.get(i)==null || map.get(i)!=testNum){
            map.put(i, testNum);
            count++;
          }
        }
      }
      map.clear();
    }
    return count+"";
  }

}
