from collections import Counter
n = int(input())
X = sorted(map(int, input().split()))
c = Counter(X)
print(round(sum(X)/len(X), 1))
if len(X)%2==0:
    print(round((X[len(X)//2]+X[len(X)//2-1])/2, 1))
else:
    print(X[len(X)//2])
najw = max(c.values())
print(min([x[0] for x in c.items() if x[1]==najw]))