import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.*;
import java.util.StringTokenizer;

public class RecycledNumbers {
    static class MyScanner {
        BufferedReader br;
        StringTokenizer st;

        public MyScanner(String fileName) throws IOException {
            br = new BufferedReader(new FileReader(new File(fileName)));
        }

        public String nextToken() throws IOException, NullPointerException {
            while (st == null || !st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
            return st.nextToken();
        }

        public String nextString() throws IOException, NullPointerException {
            st = null;
            return br.readLine();
        }

        public Integer nextInt() throws IOException {
            return Integer.parseInt(nextToken());
        }

        void close() throws IOException {
            br.close();
        }
    }

    public static void main(String[] args) throws IOException {
        final String name = "C-small-attempt0";
        MyScanner in = new MyScanner(name + ".in");
        PrintWriter out = new PrintWriter(name + ".txt");

        int t = in.nextInt();
        for (int i = 1; i <= t; i++) {
            int a = in.nextInt();
            int b = in.nextInt();
            int res = 0;
            for (int n = a; n < b; n++) {
                int m = n;
                int l = 0;
                int k = 1;
                while (m != 0) {
                    m /= 10;
                    l++;
                    k *= 10;
                }
                m = n;
                k /= 10;
                int[] w = new int[l];
                for (int j = 1; j < l; j++) {
                    m = (m % 10) * k + m / 10;
                    w[j] = m;
                    boolean f = true;
                    for (int q = 1; q < j; q++) {
                        if (m == w[q]) {
                            f = false;
                            continue;
                        }
                    }
                    if (m > n && a <= m && m <= b && f) {
                        res++;
                    }
                }
            }
            out.println("Case #" + i + ": " + res);
        }

        in.close();
        out.close();
    }
}

