int fibR(int n) {
    if(n == 0) {return 0;}
    if(n == 1) {return 1;}
    return fibR(n - 1) + fibR(n-2);
}

int fibI(int n) {
    var a = 0;
    var b = 1;
    if(n == 0) {return a;}
    if(n == 1) {return b;}
    while(n-2 > 0) {
        var old = b;
        b = b + a;
        a = old;
        n = n - 1;
    }
    return a + b;
}

int program (int argc, string[] argv) 
{
    var val = 1;
    if(fibR(12) == 144 & fibI(12) == 144) {val = 0;}
    return val;
}