N,K=map(int,input().split())
if K==0:
    print(-1)
    exit()

ans=[[-1]*N for i in range(N)]
ci,cj=0,0
for n in range(N*N-K+1,N*N+1):
    ans[ci][cj]=n
    cj+=1
    if cj==N:
        ci+=1
        cj=0

for n in range(N*N-K,0,-1):
    ans[ci][cj]=n
    cj+=1
    if cj==N:
        ci+=1
        cj=0

for v in ans:
    print(*v)