x,y=map(int,input().split())
print(x*y,x*y)
for j in range(1,x+1):
  for i in range(y-1):
    print(i*x+j,(i+1)*x+j)
for j in range(1,x):
  print((y-1)*x+j,(y-1)*x+j+1)
print((y-1)*x+x,(y-1)*x+1)