/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package Happy;
import java.io.*;
import java.math.*;
import java.lang.*;
import java.util.*;
import java.util.Arrays.*;
import java.io.BufferedReader;
//import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.PrintWriter;
//import java.util.StringTokenizer;

/**
 *
 * @author ipoqi
 */
public class Happy {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Happy().haha();
    }

    public void haha() {
        BufferedReader in = null;
        BufferedWriter out = null;
        try{
            in = new BufferedReader(new FileReader("C-large.in"));
            out = new BufferedWriter(new FileWriter("LLL.out"));
            int T = Integer.parseInt(in.readLine());
            System.out.println("T="+T);

            //LinkedList<Integer> mm = new LinkedList<Integer>();
            //mm.add(new LinkedList<Integer>());
           //int[][] mm;
           //for(int ii=0;ii<mm.length;ii++){
           //     mm[0][ii] = 1;
           //}


            for(int i=0;i<T;i++){
                String[] line = in.readLine().split(" ");
                int A = Integer.parseInt(line[0]);
                int B = Integer.parseInt(line[1]);
                //System.out.print(" A = "+A+"\n");
                //System.out.print(" B = "+B+"\n");

                int ans = 0;

                
                for(int j=A;j<B;j++){
                    int n=j;
                    if(n>=10){
                        String N = Integer.toString(n);
                        int nlen = N.length();
                        List<Integer> oks = new ArrayList<Integer>();
                        for(int k=0;k<nlen-1;k++){
                            String M = "";
                            for(int kk=1;kk<=nlen;kk++){
                                 M = M + N.charAt((k+kk)%nlen);
                            }
                            int m = Integer.parseInt(M);
                            //System.out.print(" N = "+N+"\n");
                            //System.out.print(" M = "+M+"\n");

                            if(m>n && m<=B) {
                                boolean isNewOne = true;
                                for(int kkk=0;kkk<oks.size();kkk++){
                                    //System.out.print(" KKK = "+oks.get(kkk)+"\n");
                                    if(m==oks.get(kkk)){
                                        isNewOne = false;
                                    }
                                }
                                if(isNewOne){
                                    //System.out.print(" N = "+N+"\n");
                                    //System.out.print(" M = "+M+"\n");
                                    oks.add(m);
                                    ans++;
                                }
                            }
                        }
                    }
                }
                out.write("Case #"+(i+1)+": "+ans+"\n");
                System.out.print("Case #"+(i+1)+": "+ans+"\n");
            }
            in.close();
            out.close();
        }catch(Exception e){
            e.printStackTrace();
            try{
                in.close();
                out.close();
            }catch(Exception e1){
                e1.printStackTrace();
            }
        }
        System.out.print("YES!\n");
    }

}
import java.io.*;
import java.util.*;

public class C {

	final static boolean DEBUG = true;
	
	public Object solve () throws IOException {		
		int A = sc.nextInt();
		int B = sc.nextInt();
		
		long cnt = 0;
		for (int n = A; n <= B; ++n) {
			Set<Integer> M = new HashSet<Integer>();
			String s = "" + n;
			int L = s.length();
			for (int i = 0; i < L; ++i) {
				s = s.charAt(L-1) + s.substring(0, L-1);
				int m = Integer.parseInt(s);
				if (m > n && m <= B && M.add(m))
					++cnt;
			}
		}
		return cnt;
	}
	
	void init () {
	}
	
	////////////////////////////////////////////////////////////////////////////////////
	
	public C () throws IOException {
		init();
		int N = sc.nextInt();
		start();
		for (int n = 1; n <= N; ++n)
			print("Case #" + n + ": " + solve());
		exit();
	}
	
	static MyScanner sc;
	static long t;
	
	static void print (Object o) {
		System.out.println(o);
		if (DEBUG)
			System.err.println(o + " (" + ((millis() - t) / 1000.0) + ")");
	}
	
	static void exit () {
		if (DEBUG) {
			System.err.println();
			System.err.println((millis() - t) / 1000.0);
		}
		System.exit(0);
	}
	
	static void run () throws IOException {
		sc = new MyScanner ();
		new C();
	}
	
	public static void main(String[] args) throws IOException {
		run();
	}
	
	static long millis() {
		return System.currentTimeMillis();
	}
	
	static void start() {
		t = millis();
	}
	
	static class MyScanner {
		String next() throws IOException {
			newLine();
			return line[index++];
		}
		
		char [] nextChars() throws IOException {
			return next().toCharArray();
		}
		
		double nextDouble() throws IOException {
			return Double.parseDouble(next());
		}
		
		int nextInt() throws IOException {
			return Integer.parseInt(next());
		}
		
		long nextLong() throws IOException {
			return Long.parseLong(next());
		}
		
		String nextLine() throws IOException {
			line = null;
			return r.readLine();
		}
		
		
		String [] nextStrings() throws IOException {
			line = null;
			return r.readLine().split(" ");
		}
		
		int [] nextInts() throws IOException {
			String [] L = nextStrings();
			int [] res = new int [L.length];
			for (int i = 0; i < L.length; ++i)
				res[i] = Integer.parseInt(L[i]);
			return res;
		}
		
		
		long [] nextLongs() throws IOException {
			String [] L = nextStrings();
			long [] res = new long [L.length];
			for (int i = 0; i < L.length; ++i)
				res[i] = Long.parseLong(L[i]);
			return res;
		}

		boolean eol() {
			return index == line.length;
		}

		//////////////////////////////////////////////
		
		private final BufferedReader r;

		MyScanner () throws IOException {
			this(new BufferedReader(new InputStreamReader(System.in)));
		}
		
		MyScanner(BufferedReader r) throws IOException { 
			this.r = r;
		}
		
		private String [] line;
		private int index;

		private void newLine() throws IOException {
			if (line == null || index == line.length) {
				line = r.readLine().split(" ");
				index = 0;
			}
		}		
	}
	
	static class MyWriter {
		StringWriter sw = new StringWriter();
		PrintWriter pw = new PrintWriter(sw);
		
		void print(Object o) {
			pw.print(o);
		}
		
		void println(Object o) { 
			pw.println(o);
		}
		
		void println() {
			pw.println();
		}
		
		public String toString() {
			return sw.toString();
		}
	}
	
	char [] toArray (Character [] C) {
		char [] c = new char[C.length];
		for (int i = 0; i < C.length; ++i)
			c[i] = C[i];
		return c;
	}

	char [] toArray (Collection<Character> C) {
		char [] c = new char[C.size()]; int i = 0;
		for (char z : C)
			c[i++] = z;
		return c;
	}
	
	Object [] toArray(int [] a) {
		Object [] A = new Object[a.length];
		for (int i = 0; i < A.length; ++i)
			A[i] = a[i];
		return A;
	}
	
	String toString(Object [] a) {
		StringBuffer b = new StringBuffer();
		for (Object o : a)
			b.append(" " + o);
		return b.toString().trim();
	}	
	
	String toString(int [] a) {
		return toString(toArray(a));
	}
}
