When Beomjin tries to put 2 Math books and 2 English books on the bookshelf, how many times can he put the math books side by side?
[OP_LIST_SOL] Math English [OP_LIST_EOL] [OP_LIST_LEN] 2 [OP_MUL] 1 [OP_SUB] [OP_LIST_LEN] 2 [OP_MUL] 1 [OP_SUB] [OP_PERM] 2 [OP_MUL]
var_a = 'Math'
var_b = 'English'
list_a= []
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_c = len(list_a)
var_d = 2
var_e = var_c * var_d
var_f = 1
var_g = var_e - var_f
var_h = len(list_a)
var_i = 2
var_j = var_h * var_i
var_k = 1
var_l = var_j - var_k
var_m = 1
var_g = int(var_g)
var_l = int(var_l)
for i, elem in enumerate(range(var_l)):
    var_m = var_m * (var_g-i)
var_n = 2
var_o = var_m * var_n
print(int(var_o))