Minjeong put a red ball, a blue ball, an orange ball, and a black ball in order. What is the color of the third ball?
[OP_LIST_SOL] red blue orange black [OP_LIST_EOL] 3 [OP_LIST_GET]
var_a = 'red'
var_b = 'blue'
var_c = 'orange'
var_d = 'black'
list_a= []
if "/" in str(var_d):
    var_d = eval(str(var_d))
list_a.append(var_d)
if "/" in str(var_c):
    var_c = eval(str(var_c))
list_a.append(var_c)
if "/" in str(var_b):
    var_b = eval(str(var_b))
list_a.append(var_b)
if "/" in str(var_a):
    var_a = eval(str(var_a))
list_a.append(var_a)
list_a.reverse()
var_e = 3
var_f = list_a[var_e-1]
print(var_f)