12 balls problem attempt #1

switch(comp("1 2 3", "4 5 6"))
{
    case LEFT:
        switch(comp("1", "2"))
        {
            case LEFT:
                return "1";
            case RIGHT:
                return "2";
            case EQUAL:
                return "3";
        }
        break;

    case RIGHT:
        switch(comp("4", "5"))
        {
            case LEFT:
                return "4";
            case RIGHT:
                return "5";
            case EQUAL:
                return "6";
        }
        break;

    case EQUAL:
        switch(comp("7 8", "9 10"))
        {
            case LEFT:
                return heavier("7", "8");
            case RIGHT:
                return heavier("9", "10");
            case EQUAL:
                return heavier("11", "12");
        }
        break;
}