X, Y = map(int, input().split())
ans = [(X*Y-1, X*Y-1)]
for i in range(X):
    ans.append((i * Y, (i + 1) * Y % (X*Y)) )
    for j in range(Y-1):
        ans.append((i*Y+j, i*Y+j+1))
        
for a, b in ans:
    print(a + 1, b + 1)