import sys
from fractions import Fraction
input = sys.stdin.readline
def read_values(): return tuple(map(int, input().split()))
def read_list(): return list(map(int, input().split()))

def main():  
    a=int(input())
    b=int(input())
    c=int(input())
    for x in range(1,300):
        for y in range(1,300):   
            aa = a+x+y
            if aa>=b+c:
                break
            if b >= aa+c or c >= aa+b:
                continue
            cosb=Fraction(b*b+aa*aa-c*c,2*b*aa)
            cosc=Fraction(c*c+aa*aa-b*b,2*c*aa)
            d2 = c*c+(a+y)*(a+y)-2*c*(a+y)*cosc
            e2 = b*b+(a+x)*(a+x)-2*b*(a+x)*cosb
            if x*x*c*c*e2==b*b*d2*y*y:
                print("Yes")
                return
    print("No")
        
if __name__ == "__main__":
    main()