#include <bits/stdc++.h>
using namespace std;

long long M;

vector<long long> matmul(vector<long long> &dp,vector<vector<long long>> &mt)
{
vector<long long> ret(2,0);
for(int i=0;i<2;i++)for(int j=0;j<2;j++)ret[i]+=mt[i][j]*dp[j]%M;
return ret;
}

vector<vector<long long>> update(vector<vector<long long>> &mt)
{
vector<vector<long long>> ret(2,vector<long long>(2,0));
for(int i=0;i<2;i++)for(int j=0;j<2;j++)for(int k=0;k<2;k++)ret[i][j]+=mt[i][k]*mt[k][j]%M;
return ret;
}

void matpow(vector<long long> &dp,vector<vector<long long>> &mt,int &N)
{
while(N>0)
{
if(N&1)dp=matmul(dp,mt);
mt=update(mt);
N>>=1;
}
}

int main()
{
int N;scanf("%d %lld",&N,&M);
vector<long long> dp(2);dp[0]=0;dp[1]=1;
vector<vector<long long>> mt(2,vector<long long>(2));
mt[0][0]=mt[1][0]=mt[0][1]=1;mt[1][1]=0;
matpow(dp,mt,N);
printf("%d\n",dp[1]%M);
}