import math

def main():
    import sys
    input = sys.stdin.read().split()
    ptr = 0
    N = int(input[ptr])
    ptr += 1
    X = int(input[ptr])
    ptr += 1
    Y = int(input[ptr])
    ptr += 1
    R = list(map(int, input[ptr:ptr+N]))
    ptr += N

    if N == 1:
        d = math.hypot(X, Y)
        if abs(d - R[0]) < 1e-9:
            print("Yes")
        else:
            print("No")
        return

    S = 0
    for i in range(N-1):
        S += R[i] + R[i+1]

    d = math.hypot(X, Y)
    R_N = R[-1]
    if d <= S + R_N:
        print("Yes")
    else:
        print("No")

if __name__ == '__main__':
    main()