/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}

package MyAllgoritmicLib;

public class Hungary {

	int INF = 1000*1000*1000;

	int n;
	int[][] a;
	int[] xy, yx;
	boolean[] vx, vy;
	int[] minrow, mincol;

	public Hungary(int[][] a) {
		// TODO Auto-generated constructor stub
		this.a = a.clone();
	}
	
	private boolean dotry (int i) {
		if (vx[i])  return false;
		vx[i] = true;
		for (int j=0; j<n; ++j)
			if (a[i][j]-minrow[i]-mincol[j] == 0)
				vy[j] = true;
		for (int j=0; j<n; ++j)
			if (a[i][j]-minrow[i]-mincol[j] == 0 && yx[j] == -1) {
				xy[i] = j;
				yx[j] = i;
				return true;
			}
		for (int j=0; j<n; ++j)
			if (a[i][j]-minrow[i]-mincol[j] == 0 && dotry (yx[j])) {
				xy[i] = j;
				yx[j] = i;
				return true;
			}
		return false;
	}
	
	@SuppressWarnings("unused")
	private int hungary(int num) {
		mincol = new int[num];
		minrow = new int[num];
		xy = new int[num];
		yx = new int[num];
		vx = new boolean[num];
		vy = new boolean[num];

        n = num;
        for (int q = 0; q<n; q++) {
        	mincol[q] = INF;
        	minrow[q] = INF;
        }

		for (int i=0; i<n; ++i)
			for (int j=0; j<n; ++j)
				minrow[i] = Math.min(minrow[i], a[i][j]);
		for (int j=0; j<n; ++j)
			for (int i=0; i<n; ++i)
				mincol[j] = Math.min (mincol[j], a[i][j] - minrow[i]);

        for (int q = 0; q<n; q++) {
        	xy[q] = -1;
        	yx[q] = -1;
        }

		for (int c=0; c<n; ) {
	        for (int q = 0; q<n; q++) {
	        	vx[q] = false;
	        	vy[q] = false;
	        }
			int k = 0;
			for (int i=0; i<n; ++i)
				if (xy[i] == -1 && dotry (i))
					++k;
			c += k;
			if (k == 0) {
				int z = INF;
				for (int i=0; i<n; ++i)
					if (vx[i])
						for (int j=0; j<n; ++j)
							if (!vy[j])
								z = Math.min (z, a[i][j]-minrow[i]-mincol[j]);
				for (int i=0; i<n; ++i) {
					if (vx[i]) minrow[i] += z;
					if (vy[i]) mincol[i] -= z;
				}
			}
		}

		int ans = 0;
		for (int i=0; i<n; ++i)
			ans += a[i][xy[i]];
		return ans;
	}
}
