fn run() {
    input! {
        n: usize,
        c: [(usize, i64); n],
    }
    let inf = 10i64.pow(9) * 50000 + 1;
    let mut dp = vec![vec![-inf; n + 1]; n + 1];
    dp[0][0] = 0;
    for (i, &(c, v)) in c.iter().enumerate().rev() {
        let w = i + 1;
        let q = n / w;
        let mut c = c.min(q);
        let mut s = 1;
        while c > 0 {
            let a = c.min(s);
            c -= a;
            s <<= 1;
            let v = v * (a as i64);
            let w = w * a;
            for j in (a..=q).rev() {
                let src = std::mem::take(&mut dp[j - a]);
                let geta = (j - a) * (i + 1);
                for (dp, src) in dp[j][(w + geta)..].iter_mut().zip(src[geta..].iter()) {
                    *dp = std::cmp::max(*dp, *src + v);
                }
                dp[j - a] = src;
            }
        }
    }
    use util::*;
    let ans = dp[1..].iter().map(|dp| dp.iter().max().unwrap()).join("\n");
    println!("{}", ans);
}

fn main() {
    run();
}

// ---------- begin input macro ----------
// reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
#[macro_export]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

#[macro_export]
macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};
    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

#[macro_export]
macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };
    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };
    ($iter:expr, bytes) => {
        read_value!($iter, String).bytes().collect::<Vec<u8>>()
    };
    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };
    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}
// ---------- end input macro ----------
mod util {
    pub trait Join {
        fn join(self, sep: &str) -> String;
    }

    impl<T, I> Join for I
    where
        I: Iterator<Item = T>,
        T: std::fmt::Display,
    {
        fn join(self, sep: &str) -> String {
            let mut s = String::new();
            use std::fmt::*;
            for (i, v) in self.enumerate() {
                if i > 0 {
                    write!(&mut s, "{}", sep).ok();
                }
                write!(&mut s, "{}", v).ok();
            }
            s
        }
    }
}