B3313221211233132322331321123233313231333132233133313331333131121211111223321   >>    B331322121123313232233132112323331323133313223313331333133313112121111122332   <<    B3313221211233132322331321123233313231333132233133313331333131121211111223323   >>      B3313221211233132322331321123233313231333132233133313331333131121211111223322   >>