#include <bits/stdc++.h>
using namespace std;

#define _p(...) (void)printf(__VA_ARGS__)
#define forr(x,arr) for(auto&& x:arr)
#define _overload3(_1,_2,_3,name,...) name
#define _rep2(i,n) _rep3(i,0,n)
#define _rep3(i,a,b) for(int i=int(a);i<int(b);++i)
#define rep(...) _overload3(__VA_ARGS__,_rep3,_rep2,)(__VA_ARGS__)
#define _rrep2(i,n) _rrep3(i,0,n)
#define _rrep3(i,a,b) for(int i=int(b)-1;i>=int(a);i--)
#define rrep(...) _overload3(__VA_ARGS__,_rrep3,_rrep2,)(__VA_ARGS__)
#define all(x) (x).begin(),(x).end()
#define bit(n) (1LL<<(n))
#define sz(x) ((int)(x).size())
#define ten(n) ((int)1e##n)
#define fst first
#define snd second
using ll=long long;
using pii=pair<int,int>;using pll=pair<ll,ll>;using pil=pair<int,ll>;using pli=pair<ll,int>;
using vs=vector<string>;using vvs=vector<vs>;using vvvs=vector<vvs>;
using vb=vector<bool>;using vvb=vector<vb>;using vvvb=vector<vvb>;
using vi=vector<int>;using vvi=vector<vi>;using vvvi=vector<vvi>;
using vl=vector<ll>;using vvl=vector<vl>;using vvvl=vector<vvl>;
using vd=vector<double>;using vvd=vector<vd>;using vvvd=vector<vvd>;
using vpii=vector<pii>;using vvpii=vector<vpii>;using vvvpii=vector<vvpii>;
template<class T> bool amax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> bool amin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; }
ll ri(){ll l;cin>>l;return l;} string rs(){string s;cin>>s;return s;}
template<class T>T read(){T t;cin>>t;return t;}
template<class T,class U>ostream&operator<<(ostream&o,const pair<T,U>&p){return o<<'('<<p.fst<<", "<<p.snd<<')';}
ostream&operator<<(ostream&o,const vb&t){forr(e,t)o<<"#."[e];return o;}
template<class T>ostream&operator<<(ostream&o,const vector<T>&t){o<<"{";forr(e,t)o<<e<<",";o<<"}"<<endl;return o;}
#ifdef LOCAL
vs s_p_l_i_t(const string&s,char c){vs v;stringstream ss(s);string x;while(getline(ss,x,c))v.emplace_back(x);return move(v);}
void e_r_r(vs::iterator it){cerr<<endl;}
template<class T,class... Args>void e_r_r(vs::iterator it,T a,Args... args){cerr<<it->substr((*it)[0]==' ',it->length())<<" = "<<a<<", ";e_r_r(++it,args...);}
#define out(args...){vs a_r_g_s=s_p_l_i_t(#args,',');e_r_r(a_r_g_s.begin(),args);}
#else
#define out(args...)
#endif

ll nCr[51][51];
void setCombi() {
  const int N = 51;
  for (int n = 0; n < N; n++) {
    nCr[n][0] = 1;
    for (int r = 1; r <= n; r++) {
      nCr[n][r] = (nCr[n - 1][r - 1] + nCr[n - 1][r]);
    }
  }
}

void Main() {
  setCombi();
  int n = ri();
  int a = ri();
  int b = ri();
  vector<ll> V(n);
  rep(i, n) V[i] = ri();

  map<ll, int> C;
  forr(v, V) C[v]++;

  sort(all(V), greater<decltype(V)::value_type>());

  if (V[0] == V[a-1]) {
    // 全部同じにするのが最善
    int t = C[V[0]];
    ll ans2 = 0;
    rep(i, a, b+1) {
      if (i <= t) {
        ans2 += nCr[t][i];
      }
    }
    cout << V[0] << endl;
    cout << ans2 << endl;
    return;
  }

  vector<ll> R(sz(V)+1);
  rep(ii, sz(V)) R[ii+1] = R[ii] + V[ii];

  ll sum = R[a];
  out(V, R);
  out(sum);
  double ans1 = 1.0 * sum / a;
  ll mi = V[a-1];

  int c = 0;
  rep(i, a) {
    if (V[i] == mi) c++;
  }

  ll ans2 = nCr[C[mi]][c];

  cout << fixed << setprecision(10) << ans1 << endl;
  cout << ans2 << endl;
}
signed main() { cin.tie(nullptr); ios::sync_with_stdio(false); Main(); return 0; }


Measured memory_bytes: 256