Jeonghee, Cheolsu, Eunsu, and Minjun went to the cinema to watch a horror movie. If Eunsu and Minjun, who can't watch horror movies, don't sit next to each other, find the number of cases in which four people sit in a row. (However, there are four seats and all are attached.)
[OP_LIST_SOL] Jeonghee Cheolsu Eunsu Minjun [OP_LIST_EOL] [OP_LIST_LEN] [OP_LIST_LEN] [OP_PERM] [OP_LIST_SOL] Eunsu [OP_LIST_EOL] [OP_SET_DIFFERENCE] [OP_LIST_LEN] [OP_LIST_LEN] [OP_PERM] [OP_LIST_SOL] Eunsu Minjun [OP_LIST_EOL] [OP_LIST_LEN] [OP_LIST_LEN] [OP_PERM] [OP_MUL] [OP_SUB]
var_a = 'Jeonghee'
var_b = 'Cheolsu'
var_c = 'Eunsu'
var_d = 'Minjun'
list_a= []
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_e = len(list_a)
var_f = len(list_a)
var_g = 1
var_e = int(var_e)
var_f = int(var_f)
for i, elem in enumerate(range(var_f)):
    var_g = var_g * (var_e-i)
var_h = 'Eunsu'
list_b= []
if "/" in str(var_h):
    var_h = eval(str(var_h))
list_b.append(var_h)
list_b.reverse()
list_c = list(set(list_a) - set(list_b))
var_i = len(list_c)
var_j = len(list_c)
var_k = 1
var_i = int(var_i)
var_j = int(var_j)
for i, elem in enumerate(range(var_j)):
    var_k = var_k * (var_i-i)
var_l = 'Eunsu'
var_m = 'Minjun'
list_d= []
if "/" in str(var_m):
    var_m = eval(str(var_m))
list_d.append(var_m)
if "/" in str(var_l):
    var_l = eval(str(var_l))
list_d.append(var_l)
list_d.reverse()
var_n = len(list_d)
var_o = len(list_d)
var_p = 1
var_n = int(var_n)
var_o = int(var_o)
for i, elem in enumerate(range(var_o)):
    var_p = var_p * (var_n-i)
var_q = var_k * var_p
var_r = var_g - var_q
print(int(var_r))