B2311232333132313231322331333132333132322331323132313331333132322331313331   >>    B231123233313231323132233133313233313232233132313231333133313232233131333   <<    B2311232333132313231322331333132333132322331323132313331333132322331313333   >>      B2311232333132313231322331333132333132322331323132313331333132322331313332   >>