13. Calculaţi: a) 5*[8 (27.6-16-9)-122]; b) 17 [12 (15-9-130)-59]; c) 18 [18 (325-19-17)-30]; d) [(16+4 12) 5-4-5]-3-200; e) 17 (5-[4-(13-9+19-7)-888]-555}; f) 37 (19-[8 (32-9-26-7)-840] -147}; g) 11 (8 [7 (32-8-250)-36]-46}; h) 9 (50-[310-(142-18-7) 19]-7}; i) 18 (18-[12 (21-13-270)-31]-81}; j) 10 (8 [6 (127-8-78 12)-453]-211}.​