A regular pentagon with one edge 16 centimetres (cm) long is made with one piece of thread. If the same thread is used to make an octagon, find the length of one edge of the octagon.
16 5 [OP_MUL] 8 [OP_DIV]
var_a = 16
var_b = 5
var_c = var_a * var_b
var_d = 8
var_e = var_c / var_d
print(int(var_e))