parameter

void Start () {

int a1 = 10;

int b1 = 20;

int avg1 = 40;

int total = 0;

total = GetTotal(a1, out b1);

print ("total = " + total + ", avg = " + avg1 + ", a1=" + a1 + ", b1=" + b1);

}

int GetTotal(int a, out int b){

a = 30;

b = 30;

return a + b;

}