B3311331313231311331322331333132233131133132233133313231333132233123311   >>    B331133131323131133132233133313223313113313223313331323133313223312331   <<    B3311331313231311331322331333132233131133132233133313231333132233123313   >>      B3311331313231311331322331333132233131133132233133313231333132233123312   >>