Find the number of numbers less than or equal to 6 among single-digit even numbers.
1 9 [OP_LIST_EVEN] 6 [OP_LIST_LESS_EQUAL] [OP_LIST_LEN]
var_a = 1
var_b = 9
list_a = []
if var_a%2!=0:
    for i in range(var_a+1, var_b+1, 2):
        list_a.append(i)
else:
    for i in range(var_a, var_b+1, 2):
        list_a.append(i)
var_c = 6
list_b = []
for i in list_a:
    if i <= var_c:
        list_b.append(i)
var_d = len(list_b)
print(int(var_d))