import sys
input=sys.stdin.readline
def I(): return int(input())
def MI(): return map(int, input().split())
def LI(): return list(map(int, input().split()))

def main():
    mod=10**9+7
    a,b,c,d=MI()
    
    D= (a-c)**2 - 4*2*(b-d)
    
    if D==0:
        print("Yes")
    elif D<0:
        print("No")
    else:
        x1=(-(a-c)+D**0.5)/4
        x2=(-(a-c)-D**0.5)/4
        
        y1=x1**2 + a*x1 + b
        y2=x2**2 + a*x2 + b
        
        p=(y2-y1)/(x2-x1)
        q=y1-p*x1
        
        print(p,q)
        


main()