On the second day, the monks without dots see three dots, so know they do not need to jump. The monks with a dot see two dots, so there are two possibilities;
A) they do not have a dot, in which case the two other monks with dots will jump (they would only see one dot, and if that monk had the only dot, he would have seen none the day before and jumped then)
B) they do have a dot, in which case they other monks will not jump, since they will also see two other monks with dots.
On the first day, the monks see 2 or 3 dots, but can not figure out if they have a dot until the 2nd or 3rd day, as above.
