i'd like to know if someone has ever tried to send two different values from a single serial port.
Yes, of course.
i wonder how it could be possible to parse the information in processing in order to put those values into different variables.
Open the serial port. Use the bufferUntil() method to define when to call the serialEvent() callback.
Define the serialEvent() callback. In that function, the String returned by Serial.read() will contain the whole string read. That string can be split into an array of integers, in one step.