import sys

readline = sys.stdin.readline

ns = lambda: readline().rstrip()
ni = lambda: int(readline().rstrip())
nm = lambda: map(int, readline().split())
nl = lambda: list(map(int, readline().split()))

def solve():
    a, b, c, d = nm()
    e, f = a-c, b-d
    D = e ** 2 - 8 * f
    if D < 0:
        print('No')
        return
    elif D == 0:
        print('Yes')
        return
    p = a - e / 2
    q = (D - e **2) / 16 + b
    print(p, q)
    return

solve()