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:
        if X * X + Y * Y == R[0] * R[0]:
            print("Yes")
        else:
            print("No")
        return
    
    S = 0
    for i in range(N-1):
        S += R[i] + R[i+1]
    
    D0 = math.hypot(X, Y)
    if (D0 - R[-1]) <= S:
        print("Yes")
    else:
        print("No")

if __name__ == "__main__":
    main()