X,Y=map(int,input().split())
print(X*Y,X*Y)

def iwai(n,m):
    P=[]
    for i in range(n):
        P.append((i,(i+1)%n))
    for i in range(m-1):
        for j in range(n):
            P.append((i*n+j,(i+1)*n+j))
    return P

b=0
ms=2
while X>=3+ms:
    P=iwai(ms,Y)
    X-=ms
    for i,j in P:
        print(b+i+1,b+j+1)
    b+=ms*Y

P=iwai(X,Y)
for i,j in P:
    print(b+i+1,b+j+1)