B3313221211233132322331321123233313231333132233133313331333132313113313122211   >>    B331322121123313232233132112323331323133313223313331333133313231311331312221   <<    B3313221211233132322331321123233313231333132233133313331333132313113313122213   >>      B3313221211233132322331321123233313231333132233133313331333132313113313122212   >>