B33113313132313113313223313331323133313223313231333133313311231212121121131111   >>    B3311331313231311331322331333132313331322331323133313331331123121212112113111   <<    B33113313132313113313223313331323133313223313231333133313311231212121121131113   >>      B33113313132313113313223313331323133313223313231333133313311231212121121131112   >>