#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#define ll long long
using namespace std;

ll mpower(ll a,ll b,ll c){
    int z;
    if(b==0){
        z=1;
        z%=c;
        return z;
    }
    if(b==1){
        z=a;
        z%=c;
        return z;
    }
    else{
        return (((mpower(a,b/2,c))*(mpower(a,b/2,c))%c)*mpower(a,b%2,c)%c);
    }
}

int main() {
  ll mod=1000000007;
  ll p,q;
  cin>>p>>q;
  ll ans=6*((mpower(2,p,mod)+mpower(2,q,mod))%mod)-24;
  cout<<ans%mod;
}