N, M = map(int, input().split())

def modprd(A_0, A_1):
    a_0, b_0 = A_0[0]; c_0, d_0 = A_0[1]
    a_1, b_1 = A_1[0]; c_1, d_1 = A_1[1]
    ret = [[0, 0], [0, 0]]
    ret[0][0] = (a_0 * a_1 + b_0 * c_1) % M
    ret[0][1] = (a_0 * b_1 + b_0 * d_1) % M
    ret[1][0] = (c_0 * a_1 + d_0 * c_1) % M
    ret[1][1] = (c_0 * b_1 + d_0 * d_1) % M
    return ret

def modpow(A, N):
    if N == 0:
        return [[1, 0], [0, 1]]
    if N % 2 == 0:
        return modprd(modpow(A, N // 2), modpow(A, N // 2))
    else:
        return modprd(A, modprd(modpow(A, N // 2), modpow(A, N // 2)))

F = [[0, 1], [1, 1]]
F = modpow(F, N - 1)
print(F[0][1])