Starting placement of 2019 vex game

a question about starting position of vex tower take over game.

The rule says robot should contact perimeter walls. The field has 4 side walls. 2 perimeter side walls shared by all, which is divided by midfield white line.

Can we starting from this shared side wall by touching it, as long as at our side of field?

thanks

Please check rule SG1 in the game manual (https://content.vexrobotics.com/docs/vrc-tower-takeover/GameManual-20190816.pdf), and repost if you have a question about starting placement which is not clear after reading SG1(a)