import sys
sys.setrecursionlimit(1000000)
input = sys.stdin.readline
from bisect import *
from collections import *
from heapq import *
INF = 500000
mod = 10**9+7

a, b, c = map(int, input().split())
if a*a+b*b+c*c > 2*(a*b+b*c+c*a) and c > 4:
    print('Yes')
else:
    print('No')
