n,h=map(int,input().split())
D=[]
for i in range(1,n):
    if n%i==0:
        D.append(i)



if h==1:
    P=[]
    for num in D:
        P.extend([num]*num)
    print(*P)

elif h==2:
    P=[]
    for num in D[:-1]:
        P.extend([num]*num)
    print(*P)
    print(*[D[-1]]*D[-1])

elif h==n//2:
    P=[]
    for num in D[:-1]:
        P.extend([num]*num)
    for num in P:
        print(num,D[-1])

elif h==n:
    P=[]
    for num in D:
        P.extend([num]*num)
    for num in P:
        print(num)

else:
    B=[[-1 for i in range(n//h)] for q in range(h)]
    r,c=0,0
    w=n//h

    while D:
        now=D[-1]
        if now%(h-r)==0:
            for i in range(r,h):
                for q in range(c,c+now//(h-r)):
                    B[i][q]=now
            c+=now//(h-r)
            D.pop()
            continue
    
        if now%(w-c)==0:
            for q in range(c,w):
                for i in range(r,r+now//(w-c)):
                    B[i][q]=now
            
            r+=now//(w-c)
            D.pop()
            continue

        print(-1)
        exit(0)
    
    for row in B:
        print(*row)