import sys
from fractions import Fraction

from typing import List, Tuple

int1 = lambda x: int(x) - 1
input = lambda: sys.stdin.readline().rstrip('\n')
ii = lambda: int(input())
vi = lambda: list(map(int, input().split()))
vi1 = lambda: list(map(int1, input().split()))


def dbg(*args, **kwargs):
    print(*(repr(arg) for arg in args), *(f'{k}: {repr(v)}' for k, v in kwargs.items()),
          sep='; ', file=sys.stderr, flush=True)


def med(x):
    n = len(x)
    if n % 2 == 1:
        return x[n // 2]
    else:
        return Fraction(x[n // 2] + x[(n - 1) // 2], 2)


def main():
    n = ii()
    a = sorted(vi())
    q2 = med(a)
    q1 = med(a[:n // 2])
    q3 = med(a[(n + 1) // 2:])
    iqr = q3 - q1
    u = sum(x < q1 - Fraction(3, 2) * iqr or x > q3 + Fraction(3, 2) * iqr for x in a)

    print(float(q1), float(q2), float(q3), u)


def _start():
    if (ret := main()) is not None:
        print(*ret) if isinstance(ret, List) or isinstance(ret, Tuple) else print(ret)


if __name__ == '__main__':
    _start()