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

A = [[1, 1], [1, 0]]
rui = [A for _ in range(31)]
def multi(X, Y):
  a, b = X[0]
  c, d = X[1]
  w, x = Y[0]
  y, z = Y[1]
  ret = [[0] * 2 for _ in range(2)]
  ret[0][0] = (a * w + b * y) % M
  ret[0][1] = (a * x + b * z) % M
  ret[1][0] = (c * w + d * y) % M
  ret[1][1] = (c * x + d * z) % M
  return ret

for i in range(1, 31):
  rui[i] = multi(rui[i - 1], rui[i - 1])
  
ans = [[1, 0], [0, 1]]
for i in range(31):
  if ((N - 1) >> i) & 1:
    ans = multi(ans, rui[i])
print(ans[0][1])