Bearmach springs

Hi, may seem like a silly question so I apologise in advance. I've had to buy some new springs and shocks for my landrover discovery 1. The don't come with instructions and 2 are taller than the others. Which go to the front and which to the back? They are the blue Bearmach ones.
Thanks

The one's with thicker coils at the rear.

And two taller ones on the drivers side

Thank you