B3313221211233132322331321123233313231333132233133313331333132333131132113121   >>    B331322121123313232233132112323331323133313223313331333133313233313113211312   <<    B3313221211233132322331321123233313231333132233133313331333132333131132113123   >>      B3313221211233132322331321123233313231333132233133313331333132333131132113122   >>