B3313221211233132322331321123233313231333132233133313331333132322223331   >>    B331322121123313232233132112323331323133313223313331333133313232222333   <<    B3313221211233132322331321123233313231333132233133313331333132322223333   >>      B3313221211233132322331321123233313231333132233133313331333132322223332   >>