from sys import stdin

from decimal import Decimal,getcontext

getcontext().prec = 50

a,b,c = [Decimal(x) for x in stdin.readline().rstrip().split()]

if a.sqrt() + b.sqrt() < c.sqrt():

    print("Yes")

else:

    print("No")
from sys import stdin

a,b,c = [int(x) for x in stdin.readline().rstrip().split()]

if 4*a*b < (c-a-b)**2 and (c-a-b) > 0:

    print("Yes")

else:

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

getcontext().prec = 50
a, b, c = [Decimal(x) for x in stdin.readline().rstrip().split()]
if a.sqrt() + b.sqrt() < c.sqrt():
    print("Yes")
else:
    print("No")

from sys import stdin

a, b, c = [int(x) for x in stdin.readline().rstrip().split()]
if 4 * a * b < (c - a - b) ** 2 and (c - a - b) > 0:
    print("Yes")
else:
    print("No")

-from decimal import Decimal, getcontext -getcontext().prec = 50 -a, b, c = [Decimal(x) for x in stdin.readline().rstrip().split()] -if a.sqrt() + b.sqrt() < c.sqrt(): +a, b, c = [int(x) for x in stdin.readline().rstrip().split()] +if 4 * a * b < (c - a - b) ** 2 and (c - a - b) > 0: