B33113313132313113313223313331323133313232212331333132322131121   >>    B3311331313231311331322331333132313331323221233133313232213112   <<    B33113313132313113313223313331323133313232212331333132322131123   >>      B33113313132313113313223313331323133313232212331333132322131122   >>