B3311331313231311331322331333132233131133132233133313231333131131321   >>    B331133131323131133132233133313223313113313223313331323133313113132   <<    B3311331313231311331322331333132233131133132233133313231333131131323   >>      B3311331313231311331322331333132233131133132233133313231333131131322   >>