package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

import java.io.IOException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.FileInputStream;
import java.util.NoSuchElementException;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
	public static void main(String[] args) {
		InputStream inputStream;
		try {
			inputStream = new FileInputStream("module/src/C.in");
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
		OutputStream outputStream;
		try {
			outputStream = new FileOutputStream("module/src/C.txt");
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
		MyScanner in = new MyScanner(inputStream);
		PrintWriter out = new PrintWriter(outputStream);
		ProblemC solver = new ProblemC();
		int testCount = Integer.parseInt(in.next());
		for (int i = 1; i <= testCount; i++)
			solver.solve(i, in, out);
		out.close();
	}
}

class ProblemC {
	public void solve(int testNumber, MyScanner in, PrintWriter out) {
        int A = in.nextInt(),B = in.nextInt();
        boolean[] visited=new boolean[B+1];
        long res = 0;
        for(int i=A;i<=B;i++){
            if(visited[i])continue;
            int num = i;
            String str = num+"";
            int cnt = 0;
            for(int j=0;j<str.length();j++){
                String nxtStr = str.substring(j) + str.substring(0,j);
                if(nxtStr.charAt(0)!='0'){
                    int nxt = Integer.valueOf(nxtStr);
                    if(A <= nxt && nxt <= B && !visited[nxt]){
                        cnt++;
                        visited[nxt]=true;
                    }
                }
            }
            res += cnt * (cnt-1) / 2;
        }
        out.printf("Case #%d: %d\n",testNumber,res);
	}
}

class MyScanner {
    private final InputStream in;
    public MyScanner(InputStream in){
        this.in = in;
    }

    char[] buf = new char[2000000];
    int strLen;
	public String next() {
		try {
            strLen = 0;
            int c;
			do{
				c = in.read();
				if(c==-1)throw new NoSuchElementException();
			}while(Character.isWhitespace(c));
			do {
                buf[strLen++] = (char)c;
                c = in.read();
			} while (c!=-1 && !Character.isWhitespace(c));
            return new String(buf,0,strLen);
		} catch (IOException e) {
            throw new NoSuchElementException();
		}
	}

	public int nextInt(){
		try{
			int c=in.read();
			if(c==-1) return c;
			while(c!='-'&&(c<'0'||'9'<c)){
				c=in.read();
				if(c==-1) return c;
			}
			if(c=='-') return -nextInt();
			int res=0;
			do{
				res*=10;
				res+=c-'0';
				c=in.read();
			}while('0'<=c&&c<='9');
			return res;
		}catch(Exception e){
			return -1;
		}
	}


    }

