N, M = map(int, input().split())
P = [[1, 1], [1, 0]]
A1 = [[0], [1]]
E = [[1, 0], [0, 1]]

def matrix_multi(A, B):
    res = [[0] * len(B[0]) for _ in range(len(A))]
    for i in range(len(A)):
        for j in range(len(B[0])):
            for k in range(len(A[0])):
                res[i][j] += A[i][k] * B[k][j]
                res[i][j] %= M
    return res

def matrix_power(P, x):
    if x == 0:return E
    res = matrix_power(P, x//2)
    res = matrix_multi(res, res)
    if x&1:res = matrix_multi(res, P)
    return res

ans = matrix_multi(matrix_power(P, N-1), A1)[0][0]
print(ans)