B3313221211233132322331321123233313231333132233133313331323132313231333211   >>    B331322121123313232233132112323331323133313223313331333132313231323133321   <<    B3313221211233132322331321123233313231333132233133313331323132313231333213   >>      B3313221211233132322331321123233313231333132233133313331323132313231333212   >>