Wrie a C program :

The Soccer World Cup features 32 national teams competing over the course of a month in the host nation. There are two stages: the group stage followed by the knockout stage. In the group stage, teams compete within eight groups of four teams each. Each group plays a round-robin tournament, in which each team is scheduled for three matches against other teams in the same group. This means that a total of six matches are played within a group. The top two teams from each group advance to the knockout stage. Points are used to rank the teams within a group. Three points are awarded for a win, one for a draw and none for a loss.The soccer national teams within the group are ranked, initially, according to this given points; however, in some cases there could be ties. When there is a tied position, this one is solved as per the following criteria:

1. Team with the greatest goal difference in all group matches gets the position.

2. Team with the greatest combined number of goals scored in all group matches gets the position.