def dot(A, B, mod):
    res = [[0]*2 for _ in range(2)]
    for i in range(2):
        for j in range(2):
            for k in range(2):
                res[i][j] += A[i][k]*B[k][j]
                res[i][j] %= mod
    return res

cal = []
cal.append([[1,1],[1,0]])
for i in range(40):
    c = dot(cal[-1], cal[-1], 10**9+7)
    cal.append(c)

N = int(input())
mod = 10**9+7
n = bin(N)[2:]
res = [[1,0],[0,1]]
for i in range(len(n)):
    if n[-1-i]=='1':
        res = dot(cal[i], res, mod)
print((res[0][0]*res[1][0])%mod)