TUYMAADA 1994 Problem 1

World Cup in America introduced a new point system. For a victory $3$ points are given, for a draw $1$ point and for defeat $0$ points. In the preliminary games, the teams are divided into groups of $4$ teams. In groups, teams play with each other, once, then in accordance with the points scored $a,b,c$ and $d$ ( $a>b>c>d$ ) teams take the first, second, third and fourth place in their groups. Give all possible options for the distribution points $a,b,c$ and $d$