AOJ 2169 Colored Octahedra

Solved Users (link to submissions)
amano
arrows
arsenic28
asi1024
awpris
bal4u
beet
c7c7
cos
Darsein
dohatsu
ee67052
ei1333
flowlight
fura2
gasin
hadrori
haji149
hamayan
hec
ichyo
id
imulan
ir5
ishikado
issysan
japlj
jin_matakich
judgekun
kagasan
kaneko
kmcyuma
kzyKT
k_operafan
latte0119
laycurse
leaf1415
lyoz
lyrically
mamekin
mitaki28
Mi_Sawa
nadeko
namonakiaccount
naoto172
ne200031
nisshy
nokoTaro
ojdaemon
okaduki1
okaoka
orpheus
paruki
paunchy
pes
ponyopoppo
qras
QtaroKujo
rankalee
rapi_376
Respect2D
rng_58
ryo_ryo66
s1150092
s1180008
s1180132
s1190048
s1210207
s1220013
s1230146
s1230149
satashun
shioshiota
sigma425
SIW
snuke
sugim48
suibaka
sumino
sune2
syl659
takitakitakise
tnakao
tomerunn_
tozangezan
Tsuta_J
ttsuki2
ustimaw
uwi
wakaba
wk
yuki
yukim
yuscarlet
yuusti
zukky