B3311331313231311331322331333132311233132333131123313231333132313232322131   >>    B331133131323131133132233133313231123313233313112331323133313231323232213   <<    B3311331313231311331322331333132311233132333131123313231333132313232322133   >>      B3311331313231311331322331333132311233132333131123313231333132313232322132   >>