Five neighbours sit in a single row, facing the same direction. Positions are numbered 1 to 5 from the left end. The neighbours are Tarun, Uday, Varun, Wasim and Yash. Varun sits exactly in the middle of the row. Yash sits at the leftmost position. Uday sits immediately to the right of Varun. Wasim does not sit at the rightmost position. How many people sit between Yash and Uday?