Red Circuits, 28/s, blue belt inputs, same side

From /u/Randomical: https://www.reddit.com/r/factorio/comments/7r2s1b/late_game_belt_based_red_circuit_setup_13440/

Inputs:

1. Full blue belt Green Circuits
2. Full blue belt Plastic
3. ~70% blue belt copper plates

Outputs:

1. 70% blue belt red circuits (28/s)