Which players won awards in both 1960 and 1961? Return their first names and last names.
select t1.name_first, t1.name_last from player as t1 join player_award as t2 where t2.year = 1960 intersect select t1.name_first, t1.name_last from player as t1 join player_award as t2 where t2.year = 1961