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 * and open the template in the editor.
 */
package gcj;

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class C {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("C-small-attempt0.in"));
		String li;
		int tcn = Integer.parseInt(in.readLine());
		Scanner sc;
		String A, B, is, tmp;
		List<Pair> ar = new ArrayList<Pair>();
		for (int tc = 0; tc < tcn; tc++) {
			ar.clear();
			li = in.readLine();
			sc = new Scanner(li);
			A = sc.next(); B = sc.next();
			int a = Integer.parseInt(A), b = Integer.parseInt(B), tmpi;
			int result = 0;
			if (a > 9) {
				for (int i = a; i <= b; i++) {
					is = String.valueOf(i);
					if (!isSame(is)) {
						for (int j = 1, l = is.length(); j < l; j++) {
							tmp = is.substring(j) + is.substring(0, j);
							tmpi = Integer.valueOf(tmp);
							if (i != tmpi) {
								Pair p = new Pair(i, tmpi);
								if (!ar.contains(p) && tmpi > a && tmpi < b) {
									ar.add(p);
									result++;
								}
							}
						}
					}
				}

			}
			System.out.println("Case #" + (tc + 1) + ": " + result);
		}
		in.close();
	}

	static boolean isSame(String s) {
		char[] ds = s.toCharArray();
		char fd = ds[0];
		for (char d : ds) {
			if (d != fd) return false;
		}

		return true;
	}

	static class Pair {
		final int f;
		final int s;

		Pair(int f, int s) {
			this.f = f;
			this.s = s;
		}

		public boolean equals(Object o) {
			Pair that = (Pair) o;

			return ((this.f == that.f && this.s == that.s) || (this.f == that.s && this.s == that.f));
		}

		public String toString() {
			return "(" + f + "," + s + ")";
		}
	}
}
