# Edited: https://yukicoder.me/submissions/1023182
X, Y = map(int, input().split())


def p(a, b):
    print(str(a) + " " + str(b))


p(X * Y, X * Y)

for x in range(1, X + 1):
    p(x, ((x + 1) if x + 1 != X else 1))

for x in range(1, X + 1):
    p(x, (Y - 1) * x + X)

for x in range(X):
    fr = (Y - 1) * x + X
    for d in range(Y - 2):
        p(fr + d, fr + d + 1)