Pixie was once playing with her magical powers when she landed on the isolated island of Verloren. The island was inhabited by a tribe whose members are all very intelligent but unfortunately were deaf and dumb. The members either had blue or brown eyes. All the members knew that there was "at least one" person amongst them who had blue eyes.

The leader of the tribe had a dream in which the Gods warned him of the blue eyed people. Subsequently, he ordered all the members with blue eyes to leave the island at the earliest. There was no mirror on the island. So all the members gathered in a field, looked at each other and went back home.

This routine was followed daily for 13 continuous days. Everyday the members would assemble in the field, look at each other and then leave for home. However on the 14th day, all the members with blue eyes left the island. Could you tell us how many members left the island ?