Negative result of multiplication

Projects Programming
1

I am trying to use simple multiplication . But it gives me a negative (-21680) result. I am getting angry. WHY?
Someone explain me it

long raw;
int a = 255;
int b = 1200;
void setup() {                
 Serial.begin(9600);     
}

void loop() {
 raw = a*b;
  Serial.print("Raw");
 Serial.print(" ");
 Serial.print(raw);
 Serial.print(" ");
 Serial.println();
 Serial.println();
}
3

I used even a simple numbers like raw = 255 * 1200;
But result is same. I need this multiplication in another sketch. But seems it is not working or my brain stoped work >:(

4

Try

raw = a * (long)b;

to stop the compiler producing an int output.

5 
raw = 255L * 1200L;
6

UKHeliBob:
Try

raw = a * (long)b;

to stop the compiler producing an int output.

AWOL:

raw = 255L * 1200L;

Thank You! Both of these are working.