B33113313132313113313223313331323132322331313113313331323133313232222123311   >>    B3311331313231311331322331333132313232233131311331333132313331323222212331   <<    B33113313132313113313223313331323132322331313113313331323133313232222123313   >>      B33113313132313113313223313331323132322331313113313331323133313232222123312   >>