1.25 * 17.6+31*1.25+2.24+12.5=1.25*17.6+31*1.25+2.24*10*1.25=1.25*（17.6+36+2.24*10）=1.25*76=95
1.25*17.6+1.25*36+1.25*10 -> 1.25*(17.6+36+10)
