For the points ^@ A(43, -7), ^@ ^@ B(-18, -99), ^@ ^@ C(-69, 6), ^@ ^@ D(45, -28), ^@ and ^@ E(-60, 12), ^@ find the value of ^@ (\text{abscissa } A) ^@^@+ (\text{abscissa } B) ^@^@- (\text{ordinate } E) ^@^@- (\text{ordinate } C) ^@^@- (\text{abscissa } D) ^@.