In Tensorflow 1.8.0, How to combine two placeholder into tuples in Tensorflow

Question

I have two placeholder both with 10 values in it. Now I want to convert it to tuple.

In python, I know how to do it, for example:

a = [1, 2, 3]
b = [4, 5, 6]

c = list(zip(a, b)

Then c=[(1, 4), (2, 5), (3, 6)]

So, I have a and b in placeholder, and how can I get c?

Can't use eager execution and placeholder at the same time.

But the way, my Tensorflow version is 1.8.0