def main():
    import sys
    input = sys.stdin.read().split()
    idx = 0
    N = int(input[idx])
    idx += 1
    K = int(input[idx])
    idx += 1
    A = []
    for _ in range(N):
        A.append(int(input[idx]))
        idx += 1
    
    # Add boundaries
    prev = 0
    xor_sum = 0
    A.sort()
    for a in A:
        left = prev + 1
        right = a - 1
        if left <= right:
            L = right - left + 1
            if L == 1:
                g = 1
            elif L >= 3:
                if L % 3 != 0:
                    g = 1
                else:
                    g = 0
            else:
                g = 0
            xor_sum ^= g
        prev = a
    # Handle the last segment
    left = prev + 1
    right = K
    if left <= right:
        L = right - left + 1
        if L == 1:
            g = 1
        elif L >= 3:
            if L % 3 != 0:
                g = 1
            else:
                g = 0
        else:
            g = 0
        xor_sum ^= g
    
    if xor_sum != 0:
        print("Yes")
    else:
        print("No")

if __name__ == "__main__":
    main()