B3313221211233132322331321123233313231333132233133313331323132313233313223121   >>    B331322121123313232233132112323331323133313223313331333132313231323331322312   <<    B3313221211233132322331321123233313231333132233133313331323132313233313223123   >>      B3313221211233132322331321123233313231333132233133313331323132313233313223122   >>