B33113313132313113313223313331323223313132312111133131122211211   >>    B3311331313231311331322331333132322331313231211113313112221121   <<    B33113313132313113313223313331323223313132312111133131122211213   >>      B33113313132313113313223313331323223313132312111133131122211212   >>