function pageCount(n, p) {
    // Write your code here
    let min = 1;
    let max = n % 2 == 0 ? n : n - 1
    
    for(let i = 0; i <= n ; i++){
        if(min >= p || max <= p){
            return i
        }
        min += 2;
        max -= 2;
    }

}