B33113313132313113313223313331323133313232233121133133313331333133322222321   >>    B3311331313231311331322331333132313331323223312113313331333133313332222232   <<    B33113313132313113313223313331323133313232233121133133313331333133322222323   >>      B33113313132313113313223313331323133313232233121133133313331333133322222322   >>