def calc(a, b, m):
    ar, ac, bc = len(a), len(a[0]), len(b[0])
    res = [[0] * bc for _ in range(ar)]
    for i in range(ar):
        for j in range(bc):
            res[i][j] = sum([a[i][k] * b[k][j] for k in range(ac)]) % m
    return res

n, m = map(int, input().split())
a = [[1, 1], [1, 0]]
ans = [[1], [0]]
k = n - 2
while k > 0:
    if k & 1: ans = calc(a, ans, m)
    a = calc(a, a, m)
    k >>= 1
print(ans[0][0])