Find the largest three-digit number that can be formed by using the numbers 2, 5, and 6 when repetition is allowed.
[OP_LIST_SOL] 2 5 6 [OP_LIST_EOL] 3 [OP_LIST_GET_PRODUCT] 1 [OP_LIST_MAX]
var_a = 2
var_b = 5
var_c = 6
list_a= []
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_d = 3
list_b = [str(i) for i in list_a]
list_b = list(itertools.product(list_b, repeat=var_d))
list_b = [''.join(num_list) for num_list in list_b]
list_b = [str_num for str_num in list_b if str_num[0] != '0']
list_b = [float(i) for i in list_b]
var_e = 1
list_c=list_b.copy()
list_c.sort()
var_f = list_c[-var_e]
print(int(var_f))