List the champion (team name) and year from year 1950 to 1960.
champion refers to round = 'F'; team name refers to teams.name; from year 1950 to 1960 refers to year between 1950 and 1960
SELECT DISTINCT T1.name, T2.year FROM teams AS T1 JOIN series_post AS T2 ON T1.tmID = T2.tmIDWinner WHERE T2.round = 'F' AND T2.year BETWEEN 1950 AND 1960