palindrom

//start

        int n = strToInt(args[0]);

        int dis = 9;
        int end = 10;
        int i = 1;
        for ( ; n > dis; i++) {

            n -= dis;
            if (i % 2 == 0) {
                dis *= 10;
                end *= 10;
            }


        }

        int start = end/10;

        int c = 1;

        for ( ; start < end; start++) {

            if (c == n)
                break;
            c++;

        }
        int add;
        if (i % 2 == 0) {

            add = convert(start);
            start *= end;

        } else {

            add = convert(start/10);
            start *= end/10;

        }

        //end

        int res = start + add;
        core.out(res + " : answer");




    }

    public int convert(int i) {

        int r = 0;
        while (i > 0) {
            r = 10 * r + i % 10;
            i = i / 10;
        }

        return r;
    }