B3313221211233132322331321123233313231333132233133313331323132322121133121   >>    B331322121123313232233132112323331323133313223313331333132313232212113312   <<    B3313221211233132322331321123233313231333132233133313331323132322121133123   >>      B3313221211233132322331321123233313231333132233133313331323132322121133122   >>