01010100 - 00100000 + 00000100 - 00010011 + 00000110 - 00010100 - 00010101 = 
6 + 4 - ( 9 x 3 ) + 1 + ( 8 / 2 ) - 4 + 7 + ( 4 x 2 ) - sin(π) + 3 - cos(0) + 6 = 
III + I - IV + X - II - IX  + II =