import sys
stdin = sys.stdin
def na(): return map(int, stdin.readline().split())
def ns(): return stdin.readline().strip()

def fib(n, mod):
    a = 1
    b = 1
    d = 0
    va = 1
    vb = 0
    n -= 1
    while n > 0:
        if n % 2 == 1:
            va, vb = (a*va+b*vb)%mod, (b*va+d*vb)%mod
        a, b, d = (a*a+b*b)%mod, b*(a+d)%mod, (d*d+b*b)%mod
        n >>= 1
    return va

n = int(ns())
mod = 1000000007
xmod = mod*(mod+1)*(mod-1)
if n == 0:
    print(0)
else:
    print(fib(fib(n, xmod), mod))