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.util.Scanner;

class RecycledNumbers {

    Scanner s = new Scanner(System.in);

    public static void main(String args[]) {
	    RecycledNumbers p = new RecycledNumbers();
	    p.run();
	}
	
	void run() {
	    int nCases = s.nextInt();
		for (int i=0; i<nCases; i++) {
		    int A = s.nextInt();
			int B = s.nextInt();
			System.out.println("Case #"+(i+1)+": "+count(A, B));
		}
	}

    int count(int A, int B) {
	    boolean[] dids = new boolean[B-A+1];
        int count = 0;
		int rotates = Integer.toString(A).length() - 1;
		int level = (int) Math.pow(10, rotates);

	    for (int i=A; i<B; i++) {
		    if (dids[i-A]) continue;
			int possibility = countPossibility(i, A, B, rotates, level, dids);
            if (possibility>1) count+=(possibility *(possibility-1)) / 2;			
		}
		return count;
	}

	int countPossibility(int v, int A, int B, int rotates, int level, boolean[] dids) {
	    int count = 1;
		dids[v-A] = true;
		
        for (int i=0; i<rotates; i++) {
		    int leftMost= v / level;
			v = (v % level) * 10 + leftMost;
			if (v<A || v>B) continue;
			if (dids[v-A]) continue;
			dids[v-A] = true;
			count++;
		}
    	return count;
	}
}