Mijin made a regular pentagon with a side of 16 centimeters (cm) long using wire. When she stretches out this wire again and uses all of it to make a regular octagon, find the length of one side of this regular 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))