#2+2*{(20)*5: +24:12-9-15: (2+1/3)}#
#2+2*{100: 24: 3-15: 7/3}#
#2+2*{100:24:(-12): 7/3}#
#2+2*{100:24: (-12) * 3/7}#
#2+2*{100:24:(-36/7)}#
#2+2*{100:24*(-7/36)}#
#2+2*{100:(-168/36)}#
#2+2*{100*(-36/168)}#
#2+2*{25*(-36/42)}#
#2+2*{-900/36}#
#2+2*(-300/12)#
#2+2*(-100/4)#
#2+2*(-25)#
#2-50#
#-48#