AOJ 2448 Area Folding

Solved Users (link to submissions)
asi1024
ben002
blue_jam
bnuvjudge
bnuvjudge1
bnuvjudge3
climpet
cos
Darsein
ei1333
fura2
Great_Japanese_Man
ir5
jag_staff
japlj
kyuridenamida
k_operafan
lyrically
mixsx
namonakiaccount
nisshy
not
orpheus
pachira
paunchy
peteryuanpan
resodo
s1160219
s1190048
s1220013
satashun
sky58
slip0110
sune2
ti2341
tkg1218
tozangezan
udon_soba
uwi
vjudge1
vjudge2
vjudge3
vjudge4
vjudge5
wo
xwind
zerokugi
ztxz16