import sys
input = sys.stdin.readline

H,W=list(map(int,input().split()))

flag=0
if H<W:
    flag=1
    H,W=W,H

a=H*W
P=[]

for i in range(2,H*W+1):
    if a%i==0:
        P.append(i)
        while a%i==0:
            a//=i


A=list(range(1,H*W+1))
LIST=[]
for i in range(len(P)):
    if i+1<len(P):
        x=P[i]
        y=P[i+1]

        LIST1=[]
        LIST2=[]
        B=[]

        for a in A:
            if a%(x*y)==0:
                LIST2.append(a)
            elif a%x==0:
                LIST1.append(a)
            else:
                B.append(a)

        A=B
        LIST.append(LIST1)
        LIST.append(LIST2)
    else:
        x=P[i]
        LIST1=[]
        B=[]
        for a in A:
            if a%x==0:
                LIST1.append(a)
            else:
                B.append(a)
        LIST.append(LIST1)
        A=B

ANS=[[0]*W for i in range(H)]

height=0
for L in LIST:
    w=0
    for x in L:
        if ANS[height][w]!=0:
            height+=1
        ANS[height][w]=x
        w+=1
        if w==W:
            w=0

ind=0

for i in range(H):
    for j in range(W):
        if ANS[i][j]==0:
            ANS[i][j]=A[ind]
            ind+=1

if flag:
    ANS2=[[0]*H for i in range(W)]

    for i in range(W):
        for j in range(H):
            ANS2[i][j]=ANS[j][i]

    ANS=ANS2

for ans in ANS:
    print(*ans)