How many right-shooted players have a height of 5'7''?
right-shooted players refers to shoots = 'R'; height of 5'7'' refers to height_in_inch = '5''7"';
SELECT COUNT(T1.ELITEID) FROM PlayerInfo AS T1 INNER JOIN height_info AS T2 ON T1.height = T2.height_id WHERE T2.height_in_inch = '5''7"' AND T1.shoots = 'R'