import numpy as np
N, M = map(int, input().split())


def calc(n, m):
    n -= 1
    a = np.array([1, 1, 1, 0]).reshape(2, 2)
    ans = np.array([1, 0, 0, 1]).reshape(2, 2)
    while n != 0:
        if n & 1 == 1:
            ans = np.dot(ans, a)
            ans %= m
        n >>= 1
        a = np.dot(a, a)
        a %= m
    ans = np.dot(ans, np.array([1, 0]).reshape(2, 1))
    return ans[1][0] % m


print(calc(N, M))