#include #include #ifdef LOCAL #include #define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else #define debug(...) (static_cast(0)) #endif using namespace atcoder; using mint=modint1000000007; using namespace std; using ll=long long; using ul=unsigned long long; int dx[8] = {-1, 1, 0, 0, -1, -1, 1, 1}; int dy[8] = {0, 0, -1, 1, -1, 1, -1, 1}; using Graph=vector>; int main(){ ll a,n; cin>>a>>n; cout<<1000000007<