2) (n = 2, 4, 6, 8) 80 + 30 (n 2) (n = 2, 4, 6, 8) 90 + 30 (n 2) (n = 2, 4, 6, 8) 85 + 30 (n 2) (n = 2, 4, 6, 8) 70 + 30 (n 2) (n = 2, 4, 6, 8) n (Different surfaces) D-A44 70 + 50 (n 2) (n = 2, 4, 6, 8) 85 + 50 (n 2) (n = 2, 4, 6, 8) 90 + 50 (n 2) (n = 2, 4, 6, 8) 75 + 50 (n 2) (n = 2, 4, 6, 8) 80 + 50 (n 2) (n = 2, 4, 6, 8) n (Same surface) 1 70 75 80 85 90 2 (Different surfaces