B3313221211233132322331321123233313231333132233133313331333132322331333211321   >>    B331322121123313232233132112323331323133313223313331333133313232233133321132   <<    B3313221211233132322331321123233313231333132233133313331333132322331333211323   >>      B3313221211233132322331321123233313231333132233133313331333132322331333211322   >>