B33113313132313113313223313331323131323133313232233131121213221   >>    B3311331313231311331322331333132313132313331323223313112121322   <<    B33113313132313113313223313331323131323133313232233131121213223   >>      B33113313132313113313223313331323131323133313232233131121213222   >>