(\boxed152)
Thus min sum = 108.
Coordinates: Let A=(0,0), B=(8,0), C=(8,15), D=(0,15). E on CD: C(8,15) to D(0,15) is horizontal, so y=15. CE=5 means from C (x=8) to E (x=3) → E=(3,15). Mathcounts National Sprint Round Problems And Solutions