import sys
def input(): return sys.stdin.readline().strip()
def mapint(): return map(int, input().split())
sys.setrecursionlimit(10**9)

N, M = mapint()
# 行列累乗
memo = [0]*60
memo[0] = [[1, 1], [1, 0]]

def dot(mat1, mat2, mod):
    row1, col1 = len(mat1), len(mat1[0])
    row2, col2 = len(mat2), len(mat2[0])
    if col1!=row2:
        return False
    ret = [[0]*col2 for _ in range(row1)]
    for r1 in range(row1):
        for c1 in range(col1):
            for c2 in range(col2):
                ret[r1][c2] += mat1[r1][c1]*mat2[c1][c2]
                ret[r1][c2] %= mod
    return ret

for i in range(1, 60):
    memo[i] = dot(memo[i-1], memo[i-1], M)

base = [[1, 0], [0, 1]]
for i in range(60):
    if ((N-1)>>i)&1:
        base = dot(memo[i], base, M)
print(base[1][0])