def solve(M, D): mod = 10**9 + 9 if M > D: M, D = D, M dp = preprocess(D, mod) dpM = calc(M, dp, mod) dpD = calc(D, dp, mod) n = 0 for m, d in zip(dpM, dpD): n += m * d n %= mod return n def preprocess(D, mod): n = len(str(D)) dp = [] dp_prev = [0] * (n * 9 + 1) dp_prev[0] = 1 dp.append(dp_prev) for i in range(1, n): dpi = dp_prev[:] for j in range(1, 10): for k in range(0, 9 * (i - 1) + 1): dpi[j+k] += dp_prev[k] for j in range(0, 9 * i + 1): dpi[j] %= mod dp.append(dpi) dp_prev = dpi return dp def calc(D, dp, mod): ds = [int(d) for d in str(D)] n = len(ds) dpD = [0] * (n * 9 + 1) cumd = 0 for i, di in enumerate(ds, 1): dpi = dp[n - i] for j in range(di): for k in range(9*(n - i) + 1): dpD[cumd + j + k] += dpi[k] cumd += di dpD[cumd] += 1 dpD[0] = 0 return dpD if __name__ == '__main__': M, D = map(int, input().split()) print(solve(M, D))