## https://yukicoder.me/problems/no/1523


def main():
    N, K = map(int, input().split())

    if K == 1 or K == N - 1:
        print("No")
        return
    
    if K == 2:
        if N % 2 == 0:
            n = (N - 1) // 2
            print("Yes")
            for i in range(N - 1):
                a = i + 1
                b = i + 2
                if i % 2 == 0:
                    w = (n + 1)
                else:
                    w = -(n + 2)
                print(a, b, w)
            return 
        else:
            print("No")
            return
    else:
        print("Yes")
        nega = 2 * (K - 1) + 1
        nega = -nega
        print(1, 2, nega)
        for i in range(2, 2 + (K - 1)):
            print(i, i + 1, 2)
        for i in range(2 + (K - 1), N):
            print(K, i + 1, 2)
        







if __name__ == '__main__':
    main()