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 com.codejam;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class ProblemC {

    public static void main(String[] args) throws FileNotFoundException {

        Scanner sc = new Scanner(new File("C-large.in"));
        int T = sc.nextInt();
        sc.nextLine();

        for (int i = 0; i < T; i++) {
            int A = sc.nextInt();
            int B = sc.nextInt();

            System.out.println("Case #" + (i + 1) + ": " + solve(A, B));
        }

    }

    private static long solve(int a, int b) {

        if (a < 10) {
            return 0L;
        }

        long count = 0L;
        int len = (int) Math.floor((Math.log10((double) a)));

        int factor = 1;
        for (int i = 0; i < len; i++) {
            factor *= 10;
        }

        boolean[] mark = new boolean[b - a + 1];

        for (int n = a; n <= b; n++) {

            if (mark[n - a]) {
                continue;
            }

            int nn = n;

            Set<Integer> pairs = new HashSet<Integer>();
            pairs.add(nn);
            mark[nn - a] = true;
            for (int i = 0; i < len; i++) {
                nn = (nn % 10) * factor + nn / 10;
                if (nn >= a && nn <= b) {
                    pairs.add(nn);
                    mark[nn - a] = true;
                }
            }

            count += cn2(pairs.size());
        }

        return count;
    }

    private static long cn2(int size) {
        long s = (long) size;
        return s * (s - 1) / 2L;
    }

}
