B3311331313231311331322331333132313331322331323133313331321123221312331   >>    B331133131323131133132233133313231333132233132313331333132112322131233   <<    B3311331313231311331322331333132313331322331323133313331321123221312333   >>      B3311331313231311331322331333132313331322331323133313331321123221312332   >>