Five friends sit in a single row, all facing the same direction. Positions are numbered 1 to 5 from the left end. The friends are Bhavna, Chetan, Divya, Esha and Farhan. Divya sits exactly in the middle of the row. Chetan sits immediately to the right of Divya. Farhan sits immediately to the left of Divya. Esha does not sit at the left end of the row. How many people sit between Farhan and Esha?