import math
from sys import stdin

a, b, c = map(int, stdin.readline().rstrip().split())
if (c - a - b) > 0:
    if (c - a - b) ** 2 > 4 * a * b:
        print('Yes')
    else:
        print('No')
else:
    if math.sqrt(a) + math.sqrt(b) < math.sqrt(c):
        print('Yes')
    else:
        print('No')
11c9fab81f08e3f597a711c6d37be8d9d5914076
<mask token>

<mask token>
if c - a - b > 0:
    if (c - a - b) ** 2 > 4 * a * b:
        print('Yes')
    else:
        print('No')
elif math.sqrt(a) + math.sqrt(b) < math.sqrt(c):
    print('Yes')
else:
    print('No')

<mask token>
a, b, c = map(int, stdin.readline().rstrip().split())
if c - a - b > 0:
    if (c - a - b) ** 2 > 4 * a * b:
        print('Yes')
    else:
        print('No')
elif math.sqrt(a) + math.sqrt(b) < math.sqrt(c):
    print('Yes')
else:
    print('No')

import math
from sys import stdin
a, b, c = map(int, stdin.readline().rstrip().split())
if c - a - b > 0:
    if (c - a - b) ** 2 > 4 * a * b:
        print('Yes')
    else:
        print('No')
elif math.sqrt(a) + math.sqrt(b) < math.sqrt(c):
    print('Yes')
else:
    print('No')

import math
from sys import stdin

a, b, c = map(int, stdin.readline().rstrip().split())
if (c - a - b) > 0:
    if (c - a - b) ** 2 > 4 * a * b:
        print('Yes')
    else:
        print('No')
else:
    if math.sqrt(a) + math.sqrt(b) < math.sqrt(c):
        print('Yes')
    else:
        print('No')