def prod(mat1,mat2,mod):
    n=len(mat1)
    ret=[[0]*n for _ in range(n)]
    for i in range(n):
        for j in range(n):
            for k in range(n):
                ret[i][j]+=mat1[i][k]*mat2[k][j]
            ret[i][j]%=mod
    return ret

n,m=map(int,input().split())
n-=2
matrix=[[1,1],[1,0]]
tmp=[[1,0],[0,1]]
for i in range(33):
    if n&(1<<i):
        tmp=prod(tmp,matrix,m)
    matrix=prod(matrix,matrix,m)
print(tmp[0][0])