B33113313132313113313223313331323132313233313331312131323221211   >>    B3311331313231311331322331333132313231323331333131213132322121   <<    B33113313132313113313223313331323132313233313331312131323221213   >>      B33113313132313113313223313331323132313233313331312131323221212   >>