B33113313132313113313223313331323223313221123313231323223313221   >>    B3311331313231311331322331333132322331322112331323132322331322   <<    B33113313132313113313223313331323223313221123313231323223313223   >>      B33113313132313113313223313331323223313221123313231323223313222   >>