#include <bits/stdc++.h>
// #include <atcoder/all>
#define rep(i, start, end) for (long long i = start; i < end; ++i)
#define repreverse(i, start, end) for (long long i = start; i >= end; --i)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define inrange(a, x, b) (a <= x && x <= b)
#define len(x) ((long long)(x).size())
#define lcm(a, b) ((a) / __gcd((a), (b)) * (b))
using namespace std;
// using namespace atcoder;
using ll = long long;
using ld = long double;
using vll = vector<ll>;
using vllvll = vector<vll>;
using vc = vector<char>;
using pll = pair<ll, ll>;
template<class T> void print(T x,bool cl=1){cout<<(cl?"\x1b[36m":"")<<x<<(cl?"\x1b[39m":"")<<'\n';}
template<class T> void print1d(T x,ll n=-1,bool cl=true){if(n==-1)n=x.size();rep(i,0,n){cout<<(cl?"\x1b[36m":"")<<x[i]<<(i==n-1?'\n':' ');}cout<<(cl?"\x1b[39m":"");}
template<class T> void print2d(T x,ll r=-1,ll c=-1,bool cl=1){if(r==-1)r=x.size();if(c==-1)c=x[0].size();rep(i,0,r)print1d(x[i],c,cl);}
template<class T, class U> bool haskey(T mp, U key) { return mp.find(key) != mp.end(); }
template<class T, class U> bool isin(T el, U container) { return find(all(container), el) != container.end(); }
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }
template<class T> bool even(T n) { return ! (n & 1); }
template<class T> bool odd(T n) { return n & 1; }
template<class T> ll rup(T a, T b) { return a % b ? a / b + 1 : a / b; }
template<class T> ld deg2rad(T deg) { return M_PI * deg / 180.0; }
template<class T> ld rad2deg(T rad) { return 180.0 * rad / M_PI; }
const long double pi = M_PI;
const long long big = 1LL << 50;
const long long inf = 1LL << 60;
const long long mod = 1e9 + 7;
ll intpow(ll a, ll n, ll _mod=numeric_limits<ll>::max()) { ll p=1; while (n) { if (n&1) p=p*a%_mod; a=a*a%_mod; n>>=1; } return p; } 
ll modc(ll a, char op, ll b, ll _mod=mod)
{
        a %= _mod; b %= _mod; ll res = 1;
        switch (op) {
        case '+': res = (a + b) % _mod; break;
        case '-': res = (a - b) % _mod; break;
        case '*': res = a * b % _mod; break;
        case '/': res = modc(a, '*', modc(b, '^', _mod-2, _mod), _mod); break;
        case '^': res = intpow(a, b, _mod); break;
        case 'P': rep(i, a-b+1, a+1) res = modc(res, '*', i, _mod); break;
        case 'C': res = modc(modc(a, 'P', b, _mod), '/', modc(b, 'P', b, _mod)); break;
        } 
        if (res < 0) { res += _mod; } return res;
}

ll comb(ll a, ll b)
{
        ll res = 1;
        rep(i, 1, b+1) {
                res *= a--;
                res /= i;
        }
        return res;
}

int main()
{
        ll N, A, B;
        cin >> N >> A >> B;
        vll v(N);
        vll tmp(N);
        rep(i, 0, N) cin >> v[i], tmp[i] = v[i];

        sort(all(v));
        sort(all(tmp));
        tmp.erase(unique(all(tmp)), tmp.end());

        vll comp(N);
        rep(i, 0, N) comp[i] = lower_bound(all(tmp), v[i]) - tmp.begin();
        // print1d(comp);

        ll mx = accumulate(v.end()-A, v.end(), 0LL);

        ld ans1 = accumulate(v.end()-A, v.end(), 0LL) / (ld)A;

        ll kind = len(tmp);

        vll allcnt(kind);
        rep(i, 0, N) allcnt[comp[i]]++;

        ll ans2 = 0;
        rep(i, A, B+1) {
                ll sm = accumulate(v.end()-i, v.end(), 0LL);
                if (sm*A != mx*i) continue;

                vll cnt(kind);
                repreverse(j, N-1, N-i) {
                        cnt[comp[j]]++;
                }
                


                //rep(j, 0, kind) if (cnt[j] > allcnt[j]) continue;
                ll pr = 1;
                
                rep(j, 0, kind) {
                        
                        ll x = comb(allcnt[j], cnt[j]);
                        pr *= x;
                        // cout << allcnt[j] << " C " << cnt[j] << endl;
                }

                ans2 += pr;
        }

        cout << setprecision(21) << ans1 << endl;
        cout << ans2 << endl;
}


Measured memory_bytes: 3816