There are 2 white stones and 1 black stone. How many different ways can you place 3 stones in a row, given that same color stones are indistinguishable from each other?
1 2 [OP_ADD] 1 2 [OP_ADD] [OP_PERM] 2 2 [OP_PERM] [OP_DIV]
var_a = 1
var_b = 2
var_c = var_a + var_b
var_d = 1
var_e = 2
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 = 2
var_i = 2
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))