#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using vec = vector<ll>;
using mat = vector<vec>;
int n,m;

mat mul(mat A,mat B)
{
	mat C(3,vec(3));
	
	for(int i=1;i<=2;i++)
	for(int j=1;j<=2;j++)
	for(int k=1;k<=2;k++)
	{
		ll add = (A[i][k]*B[k][j])%m;
		C[i][j] = (C[i][j]+add)%m;
	}
	
	return C;
}

int main()
{
	cin>>n>>m;
	
	mat A(3,vec(3)),ANS(3,vec(3));
	
	A[1][1]=1;A[1][2]=1;
	A[2][1]=1;A[2][2]=0;
	
	ANS[1][1]=1;ANS[1][2]=0;
	ANS[2][1]=0;ANS[2][2]=1;
	
	n=n-2;
	while(n)
	{
		if(n%2==1)ANS = mul(ANS,A);
		A = mul(A,A);
		n = n>>1;
	}
	
	cout<<ANS[1][1];
	
	return 0;
}