s=input().split()
p=[0,0,0]
for n in range(3):
    p[n]=int(s[n])
if p[0]+p[1]==p[2]:
    print("Yes")
elif p[1]+p[2]==p[0]:
    print("Yes")
elif p[2]+p[0]==p[1]:
    print("Yes")
else
    print("No")
