public static void devClub(int l, PrintStream out) {
        int i = 1, j = -i, nr = '\n';

        while(i <= l) {
            if(j >= 0) out.print((j+1) * ((i%2 == 0 && j < i-1) || (i%2 != 0 && j > 0) ? -1 : 1));
            if((j += i % 2 == 0 ? -1 : 1) < 0 || j == i) out.print((char)(--nr + i++));
        }

    }