h,w = map(int,input().split())
ans = [[0]*(w) for i in range(h)]
now = 1
for i in range(h):
  for j in range(w):
    tmp = i*w+j
    if tmp % 2 == 0:
      ans[i][j] = now
      now += 1
  
for i in range(h)[::-1]:
  for j in range(w)[::-1]:
    tmp = i*w+j
    if tmp % 2 == 1:
      ans[i][j] = now
      now += 1

flg = True
s = ans[0][0] + ans[0][1] + ans[1][0] + ans[1][1]
for i in range(h-1):
  for j in range(w-1):
    if ans[i][j] +ans[i+1][j] +ans[i][j+1] +ans[i+1][j+1] == s: continue
    flg = False 

if flg:
  print('Yes')
  for i in ans:
    print(*i)   
else:
  print('No')