B3313221211233132322331321123233313231333132233133313331333132323123131   >>    B331322121123313232233132112323331323133313223313331333133313232312313   <<    B3313221211233132322331321123233313231333132233133313331333132323123133   >>      B3313221211233132322331321123233313231333132233133313331333132323123132   >>