n = int(input())
lst = [int(i) for i in input().split(" ")]
lst.sort(reverse = True)
c1 = c2 = 0
for i in lst:
    if (c1 < c2):
        c1 += i
    else:
        c2 += i

if (c1 <= c2*2 and c2 <= c1*2):
    print("YES")
else:
    print("NO")