function fib(n) {
if (n < 2) {
n
} else {
fib(n - 1) + fib(n - 2)
}
};
let x = 10;
let n = f ++ f2;
let _ = print (x);
let _ = print (n);
let _ = print ("fib " ++ fib(100000));
let _ = print (f());
let _ = print (f2("pao"));
let _ = print ((10 * (14 + 3)));
print ("hello, world")