N,K = map(int,input().split())

if K == 1 or N-1 <= K:
    print ("No")
elif K == 2:
    if N % 2 == 1:
        print ("No")
    else:
        print ("Yes")
        for i in range(N-1):
            print (i+1,i+2, 10**9-1 if i % 2 == 0 else -1*(10**9) )

else:

    print ("Yes")

    for i in range(K-1):

        print (i+1,i+2, -1*(10**9) if i==0 else 0)

    for i in range(K+1,N+1):

        print (1,i,10**9-1)