from copy import deepcopy
MOD = 10 ** 9 + 7

def matpow(A, B, w, MOD):
    l = len(A)
    while w:
        if w & 1:
            C = [0] * l
            for i in range(l):
                for j in range(l):
                    C[i] += A[i][j] * B[j]
                    C[i] %= MOD
            B = C.copy()
        C = [[0] * l for _ in range(l)]
        for i in range(l):
            for j in range(l):
                for k in range(l):
                    C[i][j] += A[i][k] * A[k][j]
                    C[i][j] %= MOD
        A = deepcopy(C)
        w >>= 1
    return B

def fibo(x, MOD):
    A = [[1, 1], [1, 0]]
    B = [1, 0]
    if x == 0:
        return 0
    return matpow(A, B, x - 1, MOD)[0]
    
n = int(input())
print(fibo(fibo(n, 2 * MOD + 2), MOD))