B331133131323131133132233133313231311331313113313331323223313232211212331   >>    B33113313132313113313223313331323131133131311331333132322331323221121233   <<    B331133131323131133132233133313231311331313113313331323223313232211212333   >>      B331133131323131133132233133313231311331313113313331323223313232211212332   >>