B3313221211233132322331321123233313231333132233133313331323311231   >>    B331322121123313232233132112323331323133313223313331333132331123   <<    B3313221211233132322331321123233313231333132233133313331323311233   >>      B3313221211233132322331321123233313231333132233133313331323311232   >>