abc057_D.py

import math
from collections import Counter

N, A, B = map(int, input().split())
v = list(map(int, input().split()))

v.sort(reverse = True)
cnt_v = Counter(v)
ave = []

for i in range(A, B+1):
    ave.append(sum(v[0:i]) / i)

max_ave = max(ave)
ans = 0

for j in range(B-A+1):
    temp = 1
    if ave[j] == max_ave:
        l = v[:A+j]
        cnt_l = Counter(l)
        for key, values in cnt_l.items():
            temp *= (math.factorial(cnt_v[key]) // math.factorial(values) // math.factorial(cnt_v[key] - values))
        ans += temp

print(max_ave)
print(ans)