There are six different numbers: 9, 2, 4, 1, 5, and 6. Find the difference between the largest number and the second largest number.
[OP_LIST_SOL] 6 2 4 1 5 9 [OP_LIST_EOL] 1 [OP_LIST_MAX] 2 [OP_LIST_MAX] [OP_SUB]
var_a = 6
var_b = 2
var_c = 4
var_d = 1
var_e = 5
var_f = 9
list_a= []
if "/" in str(var_f):
    var_f = eval(str(var_f))
list_a.append(var_f)
if "/" in str(var_e):
    var_e = eval(str(var_e))
list_a.append(var_e)
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_g = 1
list_b=list_a.copy()
list_b.sort()
var_h = list_b[-var_g]
var_i = 2
list_c=list_a.copy()
list_c.sort()
var_j = list_c[-var_i]
var_k = var_h - var_j
print(int(var_k))