b 9/
b /8
$
D−−−3−|\|−−5−−3−−1−−1−−3−−1−−3−−5.−−3−−1.−−3−−5−−3−−1−−3−−5−−3−−1−−3−−0−−0−−1−−3−−5−−7−−7−−7−−7−−3−|−
A−−−−−|\|−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−--−−−−−−−|−
D−−−−−|\|−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−--−−−−−−−|−