B33113313132313113313223313331323132322132333133313331323221211   >>    B3311331313231311331322331333132313232213233313331333132322121   <<    B33113313132313113313223313331323132322132333133313331323221213   >>      B33113313132313113313223313331323132322132333133313331323221212   >>