B3313221211233132322331321123233313231333132233133313331323132322112111121   >>    B331322121123313232233132112323331323133313223313331333132313232211211112   <<    B3313221211233132322331321123233313231333132233133313331323132322112111123   >>      B3313221211233132322331321123233313231333132233133313331323132322112111122   >>