#/***********************************************************
#    5num.c -- 五数要約
#***********************************************************/

def fivenum( n,  x)  # 五数要約 
    x.sort!  # クイックソート 
    for i in 0...4
        t = (n - 1.0) * i / 4.0;  j = t.to_i
        printf("%g ", x[j] + (x[j + 1] - x[j]) * (t - j))
    end
    printf("%g\n", x[n - 1])
end

require "statutil.rb"
NMAX = 5000

x = []
n = 0

while (! readerror(t = getnum($stdin)))
    if (missing(t)); next
    elsif (n >= NMAX); error("多すぎます")
    else; x[n] = t; n+= 1; end
end
fivenum(n, x)

#exit 0