using System; using System.IO; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; partial class Solver { const int mod = 1000000009; void Add(ref int x, int value) { x += value; x %= mod; } int[] Solve(string s) { const int maxSum = 10 * 200; var dp = new int[s.Length + 1, maxSum, 2]; dp[0, 0, 0] = 1; for (int i = 0; i < s.Length; i++) { int digit = s[i] - '0'; for (int j = 0; j + digit < maxSum; j++) { for (int d = 0; d <= digit; d++) { if (j + d < maxSum) { Add(ref dp[i + 1, j + d, (d < digit) ? 1 : 0], dp[i, j, 0]); } } for (int d = 0; d <= 9; d++) { if (j + d < maxSum) { Add(ref dp[i + 1, j + d, 1], dp[i, j, 1]); } } } } var result = new int[maxSum]; for (int i = 0; i < maxSum; i++) { result[i] = (dp[s.Length, i, 0] + dp[s.Length, i, 1]) % mod; } result[0] = 0; return result; } public void Run() { string M, D; M = ns(); D = ns(); var dp1 = Solve(M); var dp2 = Solve(D); long ans = 0; for (int i = 0; i < dp1.Length; i++) { ans += 1L * dp1[i] * dp2[i]; ans %= mod; } cout.WriteLine(ans); } } // PREWRITEN CODE BEGINS FROM HERE partial class Solver : Scanner { public static void Main(string[] args) { //new Solver("1000000 1000000", Console.Error).Run(); new Solver(Console.In, Console.Out).Run(); } TextReader cin; TextWriter cout; public Solver(TextReader reader, TextWriter writer) : base(reader) { this.cin = reader; this.cout = writer; } public Solver(string input, TextWriter writer) : this(new StringReader(input), writer) { } public int ni() { return NextInt(); } public long nl() { return NextLong(); } public string ns() { return Next(); } } public class Scanner { private TextReader Reader; private Queue TokenQueue = new Queue(); private CultureInfo ci = CultureInfo.InvariantCulture; public Scanner() : this(Console.In) { } public Scanner(TextReader reader) { this.Reader = reader; } public int NextInt() { return Int32.Parse(Next(), ci); } public long NextLong() { return Int64.Parse(Next(), ci); } public double NextDouble() { return double.Parse(Next(), ci); } public string[] NextArray(int size) { var array = new string[size]; for (int i = 0; i < size; i++) array[i] = Next(); return array; } public int[] NextIntArray(int size) { var array = new int[size]; for (int i = 0; i < size; i++) array[i] = NextInt(); return array; } public long[] NextLongArray(int size) { var array = new long[size]; for (int i = 0; i < size; i++) array[i] = NextLong(); return array; } public String Next() { if (TokenQueue.Count == 0) { if (!StockTokens()) throw new InvalidOperationException(); } return TokenQueue.Dequeue(); } public bool HasNext() { if (TokenQueue.Count > 0) return true; return StockTokens(); } private bool StockTokens() { while (true) { var line = Reader.ReadLine(); if (line == null) return false; var tokens = line.Trim().Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries); if (tokens.Length == 0) continue; foreach (var token in tokens) TokenQueue.Enqueue(token); return true; } } }