41.2x8.1+11x1.25+53.7x1.941.2x8.1+(41.2+12.5)x1.9+11x1.2541.2x8.1+41.2x1.9+12.5x1.9+11x1.2541.2x(8.1+1.9)+12.5x1.9+1.1x12.5412+12.5x(1.9+1.1)412+37.5449.5
