2.8+4.1+2.4+
1.5+1.4+5.5×4+3×4+1.8+0.8+3.9+3.4+4.5×3+2.15+4.7×3+3.8+3.2+2.6+3.1+3.3×2+1.2+1.2+2.8+1.4+1.4×3+2.8×2+1.4+1.1+4.17×3+2.7+1+0.9+1.4+3.3+4.3+1.8+0.4+3+4.2+1.2+1.9+2.6+1.7×3+3+4.8+3.8+3.7+5.1+5.1
不超390
2.8+4.1+2.4+
1.5+1.4+5.5×4+3×4+1.8+0.8+3.9+3.4+4.5×3+2.15+4.7×3+3.8+3.2+2.6+3.1+3.3×2+1.2+1.2+2.8+1.4+1.4×3+2.8×2+1.4+1.1+4.17×3+2.7+1+0.9+1.4+3.3+4.3+1.8+0.4+3+4.2+1.2+1.9+2.6+1.7×3+3+4.8+3.8+3.7+5.1+5.1
不超390