RosettaCodeData/Task/Anonymous-recursion/Sidef/anonymous-recursion-1.sidef

{ |i|
    func (n) {
        if (n < 0) { return };
        n < 2 ? n
              : (__FUNC__(n-2) + __FUNC__(n-1));
    }(i).to_s.say;
} * 10;