IBAFLang/IBAF-Tests/IBAF-1/fib.ibaf

int curr;
int prev1 = 1;
int prev2 = 0;

int n = 7;

while (n >= 0) {
    curr = prev2 + prev1;
    prev1 = prev2;
    prev2 = curr;
    print(curr);

    n = n - 1;
}