from decimal import Decimal



def main():

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



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

        print('Yes')

    else:

        print('No')

main()
def main():

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



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

        print('Yes')

    else:

        print('No')

main()
from decimal import Decimal


def main():
    a, b, c = list(map(int, input().split(" ")))
    if Decimal(a).sqrt() + Decimal(b).sqrt() < Decimal(c).sqrt():
        print("Yes")
    else:
        print("No")


main()

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


main()

-from decimal import Decimal - - -    if Decimal(a).sqrt() + Decimal(b).sqrt() < Decimal(c).sqrt(): +    if (4 * a * b) < (c - a - b) * (c - a - b) and (c - a - b) > 0: