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);
		}

	}
}

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;


public class Main {

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception {
        if(args.length != 1) {
            return;
        }
        FileInputStream inputStream = new FileInputStream(args[0]);
        InputStreamReader istReader = new InputStreamReader(inputStream);
        BufferedReader buffReader = new BufferedReader(istReader);

        // T:åé¡æ°
        String tStr = buffReader.readLine();
        int t = Integer.valueOf(tStr);

        for(int i = 1; i <= t; i++) {
            StringBuilder caseBuilder = new StringBuilder("Case #");
            caseBuilder.append(i);
            caseBuilder.append(": ");

            // A and B:åé¡
            String abStr = buffReader.readLine();
            String[] aandbStrs = abStr.split(" ");
            int a = Integer.valueOf(aandbStrs[0]);
            int b = Integer.valueOf(aandbStrs[1]);

            int y = 0;
            for(int n = a; n < b; n++) {
                String nStr = String.valueOf(n);

                int[] ms = new int[nStr.length() - 1];
                for(int k = 1; k < nStr.length(); k++) {
                    String mStr = nStr.substring(nStr.length() - k).concat(nStr.substring(0, nStr.length() - k));

                    int m = Integer.valueOf(mStr);
                    if(m <= a || b < m || m <= n)
                        continue;

                    boolean already = false;
                    for(int j = 0; j < nStr.length() - 1; j++) {
                        if(m == ms[j]) {
                            already = true;
                            break;
                        }
                    }
                    if(!already) {
                        y++;
                        ms[k - 1] = m;
                    }
                }
            }

            caseBuilder.append(y);

            System.out.print(caseBuilder.toString());
            if(i != t)
                System.out.println();
        }
    }

}
