B3313221211233132322331321123233313231333132233133313331323131133111   >>    B331322121123313232233132112323331323133313223313331333132313113311   <<    B3313221211233132322331321123233313231333132233133313331323131133113   >>      B3313221211233132322331321123233313231333132233133313331323131133112   >>