You are going to clean the classroom with 5 friends including Eunhee. When picking 2 people in charge of the classroom floor and 1 person in charge of the window, find the number of cases where Eunhee be in charge of the classroom floor.
5 1 [OP_SUB] 2 1 [OP_SUB] 1 [OP_ADD] [OP_PERM]
var_a = 5
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_h = var_f + var_g
var_i = 1
var_c = int(var_c)
var_h = int(var_h)
for i, elem in enumerate(range(var_h)):
    var_i = var_i * (var_c-i)
print(int(var_i))