def any_duplicates(a):
    for i in range(len(a)):
        for j in range(len(a[i])):
            if a[i][j] == a[i][j-1]  or a[i][j] == a[i][j-2]:
                return False
            elif a[i][j] == 0:
                return False
    return True
print(any_duplicates([[1, 3, 2], [9, 7, 8], [4, 5, 6]]))
print(any_duplicates([[8, 9, 2], [9, 6, 1], [3, 7, 4]]))
print(any_duplicates([[1, 1, 3], [6, 5, 4], [8, 7, 9]]))
print(any_duplicates([[0, 1, 2], [6, 4, 5], [9, 8, 7]]))