When you add 99 to a certain number and multiply that by 17, it becomes 3111. Find that number in question.
3111 17 [OP_DIV] 99 [OP_SUB]
var_a = 3111
var_b = 17
var_c = var_a / var_b
var_d = 99
var_e = var_c - var_d
print(int(var_e))