B3313221211233132322331321123233313231333132233133313331323132311313231   >>    B331322121123313232233132112323331323133313223313331333132313231131323   <<    B3313221211233132322331321123233313231333132233133313331323132311313233   >>      B3313221211233132322331321123233313231333132233133313331323132311313232   >>