N = gets.to_s.chomp L = N.size MOD = 10 ** 9 + 7 A = [0, 0, 1, 0, 2, 0, 1, 0, 3, 0, 0] B = [0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0] ans = 0 dp0 = Array.new(L + 1) { Array.new(3) { Array.new(3, 0) } } dp1 = Array.new(L + 1) { Array.new(3) { Array.new(3, 0) } } ans = 0 dp0[0][0][0] = 1 L.times do |i| v = N[i].to_i d = (i == 0) ? v : 9 0.upto(2) do |a| 0.upto(2) do |b| d.downto(1) do |n| if a == 2 && b == 2 if n == v dp0[i + 1][a][b] += dp0[i][a][b] elsif n < v dp1[i + 1][a][b] += dp0[i][a][b] end dp1[i + 1][a][b] += dp1[i][a][b] else na = a + A[n] nb = b + B[n] na = 2 if na > 2 nb = 2 if nb > 2 if n == v dp0[i + 1][na][nb] += dp0[i][a][b] dp0[i + 1][na][nb] %= MOD elsif n < v dp1[i + 1][na][nb] += dp0[i][a][b] end dp1[i + 1][na][nb] += dp1[i][a][b] dp1[i + 1][na][nb] %= MOD end end end end dp1[i + 1][0][0] += 1 end puts (dp0[L][2][2] + dp1[L][2][2]) % MOD