#!/usr/bin/env python3
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines


# %%
N = int(read())
MOD = 10**9 + 7


# %%
def fibonacci(N, MOD=MOD):
    """return (a,b) s.t. x^N = a+bx mod x^2-x-1"""
    if N == 0:
        return 1, 0
    a, b = fibonacci(N // 2)
    a, b = a * a + b * b, 2 * a * b + b * b
    if N & 1:
        a, b = b, a + b
    a, b = a % MOD, b % MOD
    return a, b


# %%
a, b = fibonacci(N + 1)
print(a * b % MOD)