import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}

package net.jbirch.gcj12qual;

import java.io.FileNotFoundException;
import java.util.Scanner;
import net.jbirch.gcj12qual.util.FileLoader;

/**
 *
 * @author Birch
 */
public class C implements Runnable {

    protected FileLoader inFile;
    protected Scanner in;

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

    public C() {
        inFile = new FileLoader("src\\main\\resources\\C.txt");
    }

    public void run() {
        try {
            in = inFile.getScanner();
            solve();
        } catch (FileNotFoundException fnfe) {
            System.out.println("File not found. Exiting.");
            System.out.println(fnfe);
        }
    }

    //Commence overall magic
    protected void solve() {
        int cases = Integer.valueOf(in.nextLine());
        for (int i = 0; i < cases; i++) {
            System.out.print("Case #" + (i + 1) + ": ");
            solve(in.nextInt(), in.nextInt());
        }
    }

    protected void solve(int low, int high) {
        int digits = (int) Math.log10(low);
        int count=0;

        for (int i = low; i <= high; i++) {
            int[] rotatedThisRound = new int[digits]; // for cases like 1212 - 2121 being counted twice. Sly.
            for (int j = 1; j <= digits; j++) {
                    int rotated = this.rotateInt(i, j);
                    if (rotated < low || rotated > high || i >= rotated || this.contains(rotatedThisRound, rotated)) continue;
                    rotatedThisRound[j - 1] = rotated;
                    count++;
            }
        }

        System.out.println(count);
    }

    protected int rotateInt(int i, int turns) {
        String theGuy = String.valueOf(i);
        String guyThe = theGuy.substring(turns) + theGuy.substring(0, turns);

        if (guyThe.startsWith("0")) return 0; // Force a fail case - rotated number has leading 0 and thus is of different length

        return Integer.valueOf(guyThe);
    }

    protected boolean contains(int[] a, int i) {
        for (int j : a) {
            if (j == i) return true;
        }
        return false;
    }
}
