Yoongi's classmates are queuing up. If there are 15 students in front of Yoongi and 12 students behind him, what is the total number of students in line?
15 1 [OP_ADD] 12 [OP_ADD]
var_a = 15
var_b = 1
var_c = var_a + var_b
var_d = 12
var_e = var_c + var_d
print(int(var_e))