import sys

# sys.setrecursionlimit(200005)
int1 = lambda x: int(x)-1
pDB = lambda *x: print(*x, end="\n", file=sys.stderr)
p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr)
def II(): return int(sys.stdin.readline())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LI1(): return list(map(int1, sys.stdin.readline().split()))
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]
def SI(): return sys.stdin.readline().rstrip()

# dij = [(0, 1), (-1, 0), (0, -1), (1, 0)]
dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)]
inf = (1 << 63)-1
# inf = (1 << 31)-1
md = 10**9+7
# md = 998244353

n,k=LI()

if k==1 or n-1==k:
    print("No")
    exit()

print("Yes")
if k==2:
    print(1,2,2)
    print(2,3,-3)
    print(3,4,2)
    for i in range(5,n+1):
        print(3,i,2)
elif k==3:
    print(1,2,2)
    print(2,3,-5)
    print(3,4,2)
    for i in range(5,n+1):
        print(3,i,2)
else:
    for i in range(k):
        print(i+1,i+2,-1)
    m=(n+1)//2
    for i in range(k+2,n+1):
        print(m,i,n)