The Serial.print() function on the Arduino is converting the value to a string, and sending the string to the serial port.
int val = 199;
Serial.print(val, DEC);
results in the characters '1', '9', and '9' being sent to the serial port.
You need to collect the values on the other end, as a string, and convert the string to an int (atoi() works great for that).
The bit shifting stuff you are doing now is completely wrong.