It is said that the average of the four classes of Korean exams is 64, 73, 69, and 82, respectively. Find the sum of the average scores of the classes whose average was less than 70.
[OP_LIST_SOL] 64 73 69 82 [OP_LIST_EOL] 70 [OP_LIST_LESS] [OP_LIST_SUM]
var_a = 64
var_b = 73
var_c = 69
var_d = 82
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 = 70
list_b = []
for i in list_a:
    if i < var_e:
        list_b.append(i)
list_b = [float(i) for i in list_b]
var_f = sum(list_b)
print(int(var_f))