Find the average of all natural numbers from 1 to 100 where the units digit is 0.
1 100 1 [OP_LIST_ARANGE] 1 0 [OP_LIST_SEARCH_FIXED_DIGIT] [OP_LIST_MEAN]
var_a = 1
var_b = 100
var_c = 1
list_a = [i for i in range(var_a, var_b + 1, var_c)]
var_d = 1
var_e = 0
list_b = [] 
var_d = int(var_d)
var_e = int(var_e)
for i in list_a:
    i = int(i)
    if (i//var_d)%10 == var_e:
        list_b.append(i)
list_b = [float(i) for i in list_b]
var_f = sum(list_b)/len(list_b)
print(int(var_f))