#include <cstdio> #include <cstring> #include <iostream> #include <string> #include <cmath> #include <bitset> #include <vector> #include <map> #include <set> #include <queue> #include <deque> #include <algorithm> #define MOD 1000000007LL using namespace std; typedef long long int ll; typedef pair<ll, ll> P; long long int powmod(long long int a, long long int k, long long int m){ if(a==0){ return 0; } long long int apow[35]; for(int i=0; i<35; i++){ if(i==0){ apow[i]=a; }else{ apow[i]=apow[i-1]*apow[i-1]%m; } } long long int ans=1; for(int i=34; i>=0; i--){ if(k>=(1ll<<i)){ ans=ans*apow[i]%m; k-=(1ll<<i); } } return ans; } ll inv(ll x, ll p){ return powmod(x, p-2, p); } P pow5(ll a, ll b, ll k){ ll ap[35], bp[35]; for(int i=0; i<35; i++){ if(i==0){ ap[i]=a, bp[i]=b; }else{ ap[i]=(ap[i-1]*ap[i-1]%MOD+5*bp[i-1]*bp[i-1]%MOD)%MOD; bp[i]=2*ap[i-1]*bp[i-1]%MOD; } } ll a0=1, b0=0; for(int i=34; i>=0; i--){ if(k>=(1ll<<i)){ ll a1=a0; a0=(a0*ap[i]%MOD+5*b0*bp[i]%MOD)%MOD; b0=(a1*bp[i]+b0*ap[i])%MOD; k-=(1ll<<i); } } return P(a0, b0); } P inv5(ll a, ll b){ ll t=(a*a%MOD-5*b*b%MOD+MOD)%MOD; t=inv(t, MOD); ll a1=a*t%MOD, b1=(MOD-b*t%MOD)%MOD; return P(a1, b1); } P mul(ll a1, ll a2, ll b1, ll b2){ ll a=(a1*b1%MOD+5*a2*b2%MOD)%MOD, b=(a1*b2+a2*b1)%MOD; return P(a, b); } int main() { ll n, m; cin>>n>>m; ll iv2=500000004; P p1=pow5(iv2, iv2, m), p2=pow5(iv2, MOD-iv2, m); ll a1=p1.first, a2=p1.second, b1=p2.first, b2=p2.second; P p3=inv5(a1-1, a2), p4=inv5(b1-1, b2); P p5=pow5(a1, a2, n), p6=pow5(b1, b2, n); P p7=mul(a1, a2, p3.first, p3.second), p8=mul(b1, b2, p4.first, p4.second); P p9=mul(p7.first, p7.second, p5.first-1, p5.second), p10=mul(p8.first, p8.second, p6.first-1, p6.second); cout<<(p9.second-p10.second+MOD)%MOD<<endl; return 0; }