from decimal import Decimal, getcontext

a,b,c = input().split()

getcontext().prec = 10000

a = Decimal(a).sqrt()

b = Decimal(b).sqrt()

c = Decimal(c).sqrt()

if a+b+Decimal(1e-14)< c:

	print("Yes")

else:

  	print("No")
from decimal import Decimal, getcontext

a,b,c = input().split()

getcontext().prec = 65

a = Decimal(a).sqrt()

b = Decimal(b).sqrt()

c = Decimal(c).sqrt()

if a+b < c:

	print("Yes")

else:

  	print("No")

from decimal import Decimal, getcontext

a, b, c = input().split()
getcontext().prec = 10000
a = Decimal(a).sqrt()
b = Decimal(b).sqrt()
c = Decimal(c).sqrt()
if a + b + Decimal(1e-14) < c:
    print("Yes")
else:
    print("No")

from decimal import Decimal, getcontext

a, b, c = input().split()
getcontext().prec = 65
a = Decimal(a).sqrt()
b = Decimal(b).sqrt()
c = Decimal(c).sqrt()
if a + b < c:
    print("Yes")
else:
    print("No")

-getcontext().prec = 10000 +getcontext().prec = 65 -if a + b + Decimal(1e-14) < c: +if a + b < c: