from collections import *

def rot90(A):
    # 時計回りに90度回転
    return list(zip(*(A[::-1])))


H, W = map(int, input().split())
flag = 0
if W % 2 == 0:
    flag = 1
    H, W = W, H
    
N = H * W
Q = deque(range(1, N + 1))
ans = [[-1] * W for _ in range(H)]
for i in range(H//2):
    for j in range(W):
        if j % 2 == 0:
            ans[2 * i][j] = Q.popleft()
            ans[2 * i + 1][j] = Q.pop()
        else:
            ans[2 * i][j] = Q.pop()
            ans[2 * i + 1][j] = Q.popleft()
            
s = 0
for i in range(2):
    for j in range(2):
        s += ans[i][j]
        
if H % 2:
    ans[-1][0] = Q.popleft()
    for j in range(1, W):
        ans[-1][j] = s - ans[-1][j - 1] - ans[-2][j] - ans[-2][j - 1]
        
if flag:
    H, W = W, H
    ans = rot90(ans)
        
Sn, Ss = set(), set()
for i in range(H):
    for j in range(W):
        Sn.add(ans[i][j])
        
for i in range(H - 1):
    for j in range(W - 1):
        Ss.add(ans[i][j] + ans[i+1][j] +ans[i][j+1] +ans[i+1][j+1])
        
assert len(Sn) == H * W
assert len(Ss) == 1

print("Yes")
for a in ans:
    print(*a)