from math import sqrt

a=int(input())
b=int(input())
c=int(input())

flag=0

for x in range(1,100):
    for y in range(1,100):

        if x+y+a>=b+c:
            continue

        a2=a+x+y

        if b*b+x*x-(a2*a2+b*b-c*c)*x/a2>0:
            k=sqrt(b*b+x*x-(a2*a2+b*b-c*c)*x/a2)
        else:
            continue

        if c*c+y*y-(a2*a2+c*c-b*b)*y/a2>0:
            l=sqrt(c*c+y*y-(a2*a2+c*c-b*b)*y/a2)
        else:
            continue

        if k>=l+a or l>=a+k or a>=k+l:
            continue

        f1=(b*b+k*k-x*x)/(b*k)
        f2=(c*c+l*l-y*y)/(c*l)

        #print(x,y,f1,f2)

        if abs(f1-f2)<10**(-7):
            flag=1

if flag==1:
    print("Yes")
else:
    print("No")