// use std::cmp;
// use std::cmp::Ordering;
// use std::collections::HashMap;

fn get_line() -> Vec<String> {
    let stdin = std::io::stdin();
    let mut s = String::new();
    loop {
        stdin.read_line(&mut s).ok();
        let s = s.trim();
        if s.len() != 0 {
            // println!("show: {}", s);
            return s.split_whitespace().map(|s| s.into()).collect();
        }
    }
}

fn main() {
    let l = get_line();
    let n: usize = l[0].parse().unwrap();
    let k: usize = l[1].parse().unwrap();

    let mut t: Vec<i64> = vec![0; n];
    let mut d: Vec<i64> = vec![0; n];
    for i in 0..n {
        let l = get_line();
        t[i] = l[0].parse().unwrap();
        d[i] = l[1].parse().unwrap();
    }

    let solve = |threshold: &i64| {
        let mut prev = 0;
        let mut left = 0;
        let mut dp = vec![std::i64::MAX / 2; n+1];
        let mut sum = vec![0i64; n+1];
        dp[0] = 0;
        for i in 0..n {
            while t[i] - t[left] >= (k as i64) {
                left += 1;
            }
            // if *threshold == 6 {
            //     println!("left prev: {} {}", left, prev);
            // }
            sum[i+1] = sum[i] + d[i];
            if left >= prev {
                dp[i+1] = std::cmp::min(dp[i+1], dp[left] + sum[i] - sum[left]);
            }
            if d[i] <= *threshold {
                dp[i+1] = std::cmp::min(dp[i+1], dp[i] + d[i]);
            } else {
                if left < prev {
                    return -1;
                }
                prev = i + 1;
            }
        }
        // if *threshold == 6 {
        //     for (i,j) in (0..n+1).enumerate() {
        //         println!("{} {}", i, dp[j]);
        //     }
        // }
        dp[n]
    };

    let mut low = -1;
    let mut high = 1i64<<30;
    while high - low > 1 {
        let mid = (low + high) / 2;
        let ans = solve(&mid);
        if ans >= 0 {
            high = mid;
        } else {
            low = mid;
        }
        // println!("{} {} {}", low, high, ans);
    }

    println!("{}", high);
    println!("{}", solve(&high));
}