#include #include using namespace std; using namespace atcoder; typedef long long int ll; typedef long double ld; typedef vector vi; typedef vector vvi; typedef vector vvvi; typedef vector vvvvi; typedef vector vb; typedef vector vvb; typedef vector vvvb; typedef vector vvvvb; typedef pair pi; typedef pair ppi; typedef pair pppi; typedef pair ppppi; #define FOR(i,l,r) for(ll i=l;i=l;i--) #define RREP(i,n) RFOR(i,0,n) #define ALL(x) x.begin(),x.end() #define F first #define S second #define BS(A,x) binary_search(ALL(A),x) #define LB(A,x) (ll)(lower_bound(ALL(A),x)-A.begin()) #define UB(A,x) (ll)(upper_bound(ALL(A),x)-A.begin()) #define COU(A,x) (UB(A,x)-LB(A,x)) #define sz(c) ((ll)(c).size()) /* #include namespace mp=boost::multiprecision; using Bint=mp::cpp_int; */ templateusing min_priority_queue=priority_queue,greater>; templateostream&operator<<(ostream&os,pairp){os<istream&operator>>(istream&is,pair&p){is>>p.F>>p.S;return is;} templateostream&operator<<(ostream&os,vectorv){REP(i,sz(v))os<istream&operator>>(istream&is,vector&v){for(T&in:v)is>>in;return is;} templatebool chmax(T&a,T b){if(abool chmin(T&a,T b){if(b(a,b); auto y=convolution(a,b); auto z=convolution(a,b); vectorret(sz(a)+sz(b)-1); REP(i,sz(ret)){ ll v1=(y[i]-x[i])*m1_inv_m2%m2;if(v1<0)v1+=m2; ll v2=(z[i]-(x[i]+m1*v1)%m3)*m12_inv_m3%m3;if(v2<0)v2+=m3; ret[i]=(x[i]+m1*v1+m12_mod*v2)%mod; } return ret; } const ld EPS=1e-8; //* using mint=modint998244353; const ll mod=998244353; //*/ /* using mint=modint1000000007; const ll mod=1000000007; //*/ //using mint=modint; //* typedef vector vm; typedef vector vvm; typedef vector vvvm; typedef vector vvvvm; ostream&operator<<(ostream&os,mint a){os<>(istream&is,mint&a){int x;is>>x;a=mint(x);return is;} //*/ int main(){ const ll L=5354228880; ll K,N;cin>>K>>N; vvi binom(30,vi(30)); binom[0][0]=1; FOR(i,1,30){ binom[i][0]=binom[i][i]=1; FOR(j,1,i)binom[i][j]=binom[i-1][j-1]+binom[i-1][j]; } vi A(N); REP(i,N)A[i]=L/(i+1); ll n=N*2/3; vector>>DP(n+1,vector>(K+1)),EP(N-n+1,vector>(K+1)); DP[0][0][0]=EP[0][0][0]=1; REP(i,n){ REP(j,K+1){ for(auto[v,k]:DP[i][j]){ for(ll l=0;v+A[i]*l<=L&&j+l<=K;l++)DP[i+1][j+l][v+A[i]*l]+=k*binom[j+l][l]; } } } FOR(i,n,N){ REP(j,K+1){ for(auto[v,k]:EP[i-n][j]){ for(ll l=0;v+A[i]*l<=L&&j+l<=K;l++)EP[i+1-n][j+l][v+A[i]*l]+=k*binom[j+l][l]; } } } ll ans=0; REP(i,K+1)for(auto[k,v]:DP[n][i])ans+=binom[K][i]*v*EP[N-n][K-i][L-k]; cout<