At the airport, 3 foreigners and 2 Koreans are lining up at the checkpoint. At this time, when it is said that foreigners must pass continuously, find the number of cases.
2 1 [OP_ADD] 2 1 [OP_ADD] [OP_PERM] 3 3 [OP_PERM] [OP_MUL]
var_a = 2
var_b = 1
var_c = var_a + var_b
var_d = 2
var_e = 1
var_f = var_d + var_e
var_g = 1
var_c = int(var_c)
var_f = int(var_f)
for i, elem in enumerate(range(var_f)):
    var_g = var_g * (var_c-i)
var_h = 3
var_i = 3
var_j = 1
var_h = int(var_h)
var_i = int(var_i)
for i, elem in enumerate(range(var_i)):
    var_j = var_j * (var_h-i)
var_k = var_g * var_j
print(int(var_k))