B3311331313231311331322331333132313331322331323133313231333133313331211113331   >>    B331133131323131133132233133313231333132233132313331323133313331333121111333   <<    B3311331313231311331322331333132313331322331323133313231333133313331211113333   >>      B3311331313231311331322331333132313331322331323133313231333133313331211113332   >>