import sys
#input = sys.stdin.readline
#input = sys.stdin.buffer.readline

def main():
    n,a,b,x,y = map(int,input().split())
    H = list(map(int,input().split()))

    #つかるやつは順番に
    for i in range(n):
        num = H[i]//x
        if a > num:
            a -= num
            H[i] -= num*x
        else:
            a = 0
            H[i] -= a*x
            break
    
    #print(H)
    #マイナスが小さい順に
    H.sort(key = lambda p: p - x, reverse=True)
    #print(H)
    for i in range(n):
        if a == 0: break
        H[i] -= x
        a -= 1
    #print(H)

    #正の部分だけ
    total = 0
    for i in range(n):
        if H[i] > 0:
            total += H[i]
    if total <= b*y:
        print('Yes')
    else:
        print('No')


if __name__ == '__main__':
    main()