use proconio::input;

fn main() {
    input! {
        _x: usize, y: usize, n: usize,
        uv: [(usize, usize); n]
    }

    let solve = |u: usize, v: usize| {
        let (u, v) = (u.min(v), u.max(v));
        if u == 0 {
            (v - 1) % y + 1
        } else {
            let (qu, ru) = ((u - 1) / y, (u - 1) % y);
            let (qv, rv) = ((v - 1) / y, (v - 1) % y);
            if qu == qv {
                ru.abs_diff(rv)
            } else {
                ru + rv + 2
            }
        }
    };

    let ans = uv
        .iter()
        .map(|&(u, v)| solve(u, v).to_string())
        .collect::<Vec<_>>()
        .join("\n");
    println!("{ans}");
}