While running, Yoongi was in 7th place and passed 4 others students. When 9 students are running in total , how many students are behind Yoongi?
9 7 4 [OP_SUB] [OP_SUB]
var_a = 9
var_b = 7
var_c = 4
var_d = var_b - var_c
var_e = var_a - var_d
print(int(var_e))