B33113313132313113313223313331323133313223313231333133313113313331333222212111   >>    B3311331313231311331322331333132313331322331323133313331311331333133322221211   <<    B33113313132313113313223313331323133313223313231333133313113313331333222212113   >>      B33113313132313113313223313331323133313223313231333133313113313331333222212112   >>