B33113313132313113313223313331323133313223313231333133311211332221   >>    B3311331313231311331322331333132313331322331323133313331121133222   <<    B33113313132313113313223313331323133313223313231333133311211332223   >>      B33113313132313113313223313331323133313223313231333133311211332222   >>