B33113313132313113313223313331323132333132313331311331333132333132322132322121   >>    B3311331313231311331322331333132313233313231333131133133313233313232213232212   <<    B33113313132313113313223313331323132333132313331311331333132333132322132322123   >>      B33113313132313113313223313331323132333132313331311331333132333132322132322122   >>