B33113313132313113313223313331323223313232212331323221311211331   >>    B3311331313231311331322331333132322331323221233132322131121133   <<    B33113313132313113313223313331323223313232212331323221311211333   >>      B33113313132313113313223313331323223313232212331323221311211332   >>