from decimal import Decimal



a, b, c = [int(i) for i in input().strip().split()]



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

  print("Yes")

else:

  print("No")

import sys

input = sys.stdin.readline





def main():

    a, b, c = list(map(int, input().split()))



    y = (c - (a+b))**2 - 4*a*b

    if c-(a+b) > 0 and y > 0:

        print("Yes")

    else:

        print("No")





if __name__ == "__main__":

    main()

from decimal import Decimal

a, b, c = [int(i) for i in input().strip().split()]
if Decimal(a).sqrt() + Decimal(b).sqrt() < Decimal(c).sqrt():
    print("Yes")
else:
    print("No")

import sys

input = sys.stdin.readline


def main():
    a, b, c = list(map(int, input().split()))
    y = (c - (a + b)) ** 2 - 4 * a * b
    if c - (a + b) > 0 and y > 0:
        print("Yes")
    else:
        print("No")


if __name__ == "__main__":
    main()

-from decimal import Decimal +import sys -a, b, c = [int(i) for i in input().strip().split()] -if Decimal(a).sqrt() + Decimal(b).sqrt() < Decimal(c).sqrt(): -    print("Yes") -else: -    print("No") +input = sys.stdin.readline + + +def main(): +    a, b, c = list(map(int, input().split())) +    y = (c - (a + b)) ** 2 - 4 * a * b +    if c - (a + b) > 0 and y > 0: +        print("Yes") +    else: +        print("No") + + +if __name__ == "__main__": +    main()