import sys, random
input = lambda : sys.stdin.readline().rstrip()


write = lambda x: sys.stdout.write(x+"\n"); writef = lambda x: print("{:.12f}".format(x))
debug = lambda x: sys.stderr.write(x+"\n")
YES="Yes"; NO="No"; pans = lambda v: print(YES if v else NO); INF=10**18
LI = lambda : list(map(int, input().split())); II=lambda : int(input()); SI=lambda : [ord(c)-ord("a") for c in input()]
def debug(_l_):
    for s in _l_.split():
        print(f"{s}={eval(s)}", end=" ")
    print()
def dlist(*l, fill=0):
    if len(l)==1:
        return [fill]*l[0]
    ll = l[1:]
    return [dlist(*ll, fill=fill) for _ in range(l[0])]

h,w = list(map(int, input().split()))
ans = [[0]*w for _ in range(h)]
v = 1
for i in range(0,h,2):
    for j in range(w):
        ans[i][j] = v
        v += 1
for i in range(1,h,2):
    for j in range(w)[::-1]:
        ans[i][j] = v
        v += 1
for j in range(0,w,2):
    vs = []
    for i in range(1,h,2):
        vs.append(ans[i][j])
    for i in range(1,h,2):
        ans[i][j] = vs.pop()
for j in range(1,w,2):
    vs = []
    for i in range(0,h,2):
        vs.append(ans[i][j])
    for i in range(0,h,2):
        ans[i][j] = vs.pop()
s = set()
for i in range(h-1):
    for j in range(w-1):
        s.add(ans[i][j]+ans[i+1][j]+ans[i][j+1]+ans[i+1][j+1])
assert len(s)==1
print("Yes")
for item in ans:
    write(" ".join(map(str, item)))