#include using namespace std; typedef long long ll; typedef pair p_ll; template void debug(T itr1, T itr2) { auto now = itr1; while(now=0; i--) const ll MOD = pow(10,9)+7; const ll LLINF = pow(2,61)-1; const int INF = pow(2,30)-1; vector fac; void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; } ll modpow(ll x, ll p) { ll result = 1, now = 1, pm = x; while (now<=p) { if (p&now) { result = result * pm % MOD; } now*=2; pm = pm*pm % MOD; } return result; } ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; } ll nck(ll n, ll k) { return n> a >> b; a %= MOD; b %= MOD; ll n, k; cin >> n >> k; n--; k--; c_fac(); ll nk[n+2]; rep(i,n+2) nk[i] = ( nck(n,i)*a + nck(n,i-1)*b ) % MOD; ll sum = 0; rep(i,n+2) sum = (sum+nk[i]*nk[i]) % MOD; // debug(nk,nk+(n+2)); cout << nk[k] << endl; cout << sum << endl; return 0; }