How many penalty minutes did the Montreal Canadiens have in the 1918's Stanley Cup Finals?
penalty minutes refer to PIM; year = 1918; Montreal Canadiens is name of team;
SELECT T2.PIM FROM Teams AS T1 INNER JOIN TeamsSC AS T2 ON T1.tmID = T2.tmID AND T1.year = T2.year WHERE T1.name = 'Montreal Canadiens' AND T1.year = 1918