i need help with number 1. How can I draw the other conformations and find out which one is stable???

Lecture problems-chapter 4.11-4.13 Chair conformation of cyclohexane and conformational (Energy) analysis (1) Draw the chair conformation of the following molecules. (2) Then flip the ring to draw another chair conformation. (3) Circle the most stable chair conformation, if they are equal, circle both