kks3

There are 51 machines in a factory, 204 workers work in the factory. Each day, grouping of workers is done. A group of 4 workers work on a single machine in a day. On the second day, the grouping is done again o, the condition that no 4 members who are together on the first day will be together on the second day. On the third day, those who are together on the first and second day should not be together. The question is: FOR HOW MANY DAYS IS THIS POSSIBLE ??