n, m = map(int, input().split());c = 1;l = 0;a = [[0 for _ in range(m)] for _ in range(n)]
for i in range(m+n-1):
    for j in range(n):
        if ((i-j) > -1) and ((i-j) < m):a[j][i-j]+=c;l+=1;c+=1
    l = 0
for o in a:
  for o2 in o:print(str(o2).rjust(4), end = '')
  print()
#scripted by PCHTeam