mod = int(1e9) + 7 vec = [1, 1, 7, 49, 343, 2401] for i in range(6): vec[i] *= 6**(5-i) def doubling(n, m): y = 1 base = n tmp = m while tmp != 0: if tmp % 2 == 1: y *= base y %= mod base *= base base %= mod tmp //= 2 return y def inved(a): x, y, u, v, k, l = 1, 0, 0, 1, a, mod while l != 0: x, y, u, v = u, v, x - u * (k // l), y - v * (k // l) k, l = l, k % l return x % mod def matprod(m1, m2, n, l, m): y = [[0 for _ in range(m)] for __ in range(n)] for i in range(n): for j in range(m): for k in range(l): y[i][j] += m1[i][k] * m2[k][j] % mod y[i][j] %= mod return y def matpow(m1, n, m): y = [[i==j for j in range(n)] for i in range(n)] bas = [[m1[i][j] for j in range(n)] for i in range(n)] tmp = m while tmp != 0: if tmp % 2 == 1: y = matprod(y, bas, n, n, n)[:][:] bas = matprod(bas, bas, n, n, n)[:][:] tmp //= 2 return y N = int(input()) bas = [[0 for j in range(6)] for i in range(6)] for i in range(5): bas[i][i+1] = 6 bas[-1][i] = 1 bas[-1][-1] = 1 mat = matpow(bas, 6, N) S = 0 for i in range(6): S += vec[i] * mat[0][i] % mod S %= mod print(S*inved(doubling(6, N+5))%mod)