ans = []
minn = 10000000000000000
c = 0
b = 0
n,m = map(int, input().split())
a = [int(i) for i in range(n)]
for i in range(n):
    b = a[i]
    s = 0
    for j in range(n):
        l = 0
        p = b // m
        b1 = a[j]
        p1 = b1 // m
        o = b % m
        o1 = b1 % m
        l = abs(p1 - p) + abs(o - o1)
        l4 = abs(b-b1)
        l1 = min(p+o, b)
        l2 = min(abs((n-1) // m - p) + abs((n-1) % m - o), n-1-b)
        l3 = l1 + l2
        s += min(min(l, l4), l3)
    if s < minn:
        minn = s
        c = b
kek = str(minn/n) + "0"*2
lol = kek.find(".")
print("Mean = " + kek[:lol+3])
for i in range(n):
    l = 0
    p = c // m
    b1 = a[i]
    p1 = b1 // m
    o = c % m
    o1 = b1 % m
    l = abs(p1 - p) + abs(o - o1)
    l4 = abs(c-b1)
    l1 = min(p+o, c)
    l2 = min(abs((n-1) // m - p) + abs((n-1) % m - o), n-1-c)
    l3 = l1+ l2
    ans.append(str(min(min(l, l4), l3)) + " ")
while len(ans) > 0:
    anso = "".join(ans[:m])
    print(anso)
    ans = ans[m:]