fn solve<R: BufRead, W: Write>(_reader: R, _writer: &mut W) {
  let mut _scanner = Scanner::new(_reader);

  #[allow(unused_macros)]
  macro_rules! scan {
    ($t:ty) => {
      _scanner.next::<$t>().unwrap()
    };
    ($($t:ty),+) => {
      ($(scan!($t)),+)
    };
    ($t:ty; $n:expr $(; $m:expr)*) => {{
      let mut vec = Vec::with_capacity($n);
      for _ in 0..$n {
        vec.push(scan!($t $(; $m)*));
      }
      vec
    }};
    ($t_0:ty, $t_1:ty; $n:expr) => {
      scan!($t_0 = 0, $t_1 = 1; $n)
    };
    ($t_0:ty, $t_1:ty, $t_2:ty; $n:expr) => {
      scan!($t_0 = 0, $t_1 = 1, $t_2 = 2; $n)
    };
    ($($t:ty = $i:tt),+; $n:expr) => {{
      let mut vecs = ($(Vec::<$t>::with_capacity($n)),+);
      for _ in 0..$n {$(
        vecs.$i.push(scan!($t));
      )+}
      vecs
    }};
  }

  #[allow(unused_macros)]
  macro_rules! scan_iter {
    ($t:ty; $n:expr) => {
      _scanner.take::<$t>($n).map(|x| x.unwrap())
    };
  }

  #[allow(unused_macros)]
  macro_rules! print {
    ($fmt:expr) => {
      write!(_writer, $fmt).unwrap()
    };
    ($fmt:expr, $($arg:tt)*) => {
      write!(_writer, $fmt, $($arg)*).unwrap()
    };
  }

  #[allow(unused_macros)]
  macro_rules! println {
    () => {
      writeln!(_writer).unwrap()
    };
    ($fmt:expr) => {
      writeln!(_writer, $fmt).unwrap()
    };
    ($fmt:expr, $($arg:tt)*) => {
      writeln!(_writer, $fmt, $($arg)*).unwrap()
    };
  }

  #[allow(unused_macros)]
  macro_rules! eprint {
    ($fmt:expr) => {
      #[cfg(debug_assertions)]
      write!(::std::io::stderr(), $fmt).unwrap()
    };
    ($fmt:expr, $($arg:tt)*) => {
      #[cfg(debug_assertions)]
      write!(::std::io::stderr(), $fmt, $($arg)*).unwrap()
    };
  }

  #[allow(unused_macros)]
  macro_rules! eprintln {
    () => {
      #[cfg(debug_assertions)]
      writeln!(::std::io::stderr()).unwrap()
    };
    ($fmt:expr) => {
      #[cfg(debug_assertions)]
      writeln!(::std::io::stderr(), $fmt).unwrap()
    };
    ($fmt:expr, $($arg:tt)*) => {
      #[cfg(debug_assertions)]
      writeln!(::std::io::stderr(), $fmt, $($arg)*).unwrap()
    };
  }

  #[allow(unused_macros)]
  macro_rules! dump {
    ($($x:expr),+) => {
      eprint!("[{}:{}] ", file!(), line!());
      eprintln!(concat!($(stringify!($x), "={:?}; "),+), $($x),+);
    };
  }

  use cmp::{OrdAssign, Reverse};

  let (n, m) = scan!(usize, usize);
  let mut points = Vec::with_capacity(n);
  for _ in 0..n {
    points.push(scan!(i64, i64, i64));
  }

  let mut ans = 0;
  for &x_pos in [true, false].iter() {
    for &y_pos in [true, false].iter() {
      for &z_pos in [true, false].iter() {
        let f = |&(x, y, z): &(i64, i64, i64)| {
          let x_score = if x_pos { x } else { -x };
          let y_score = if y_pos { y } else { -y };
          let z_score = if z_pos { z } else { -z };
          Reverse(x_score + y_score + z_score)
        };
        points.sort_by_key(&f);
        let sum: i64 = points.iter().map(&f).take(m).map(|r| r.0).sum();
        ans.max_assign(sum);
      }
    }
  }
  println!("{}", ans);
}

const STACK_SIZE_MEBIBYTES: Option<usize> = None;

fn main() {
  fn run_solver() {
    let stdin = stdin();
    let stdout = stdout();
    #[cfg(debug_assertions)]
    let mut writer = stdout.lock();
    #[cfg(not(debug_assertions))]
    let mut writer = ::std::io::BufWriter::new(stdout.lock());
    solve(stdin.lock(), &mut writer);
    writer.flush().unwrap();
  }
  if let Some(size) = STACK_SIZE_MEBIBYTES {
    let builder = ::std::thread::Builder::new().stack_size(size * 1024 * 1024);
    builder.spawn(run_solver).unwrap().join().unwrap();
  } else {
    run_solver();
  }
}

use io::Scanner;
use std::io::{stdin, stdout, BufRead, Write};

pub mod cmp {
  pub use self::ord_assign::*;
  pub use self::reverse::*;

  mod ord_assign {
    use std::cmp::{max, min};

    pub trait OrdAssign: Ord
    where
      Self: Copy,
    {
      fn min_assign(&mut self, other: Self) {
        *self = min(*self, other);
      }

      fn max_assign(&mut self, other: Self) {
        *self = max(*self, other);
      }
    }

    impl<T: Ord + Copy> OrdAssign for T {}
  }

  mod reverse {
    use std::cmp::Ordering;

    #[derive(Clone, Copy, PartialEq, Eq, Default, Debug, Hash)]
    pub struct Reverse<T>(pub T);

    impl<T: PartialOrd> PartialOrd for Reverse<T> {
      fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        other.0.partial_cmp(&self.0)
      }
    }

    impl<T: Ord> Ord for Reverse<T> {
      fn cmp(&self, other: &Self) -> Ordering {
        other.0.cmp(&self.0)
      }
    }
  }
}

pub mod io {
  pub use self::scanner::*;

  mod scanner {
    use std::io::BufRead;
    use std::marker::PhantomData;
    use std::str::{from_utf8, FromStr};

    pub struct Scanner<R> {
      reader: R,
      buffer: Vec<u8>,
      position: usize,
    }

    impl<R: BufRead> Scanner<R> {
      pub fn new(reader: R) -> Self {
        Scanner { reader: reader, buffer: vec![], position: 0 }
      }

      pub fn next<T: Parse>(&mut self) -> Option<T> {
        Parse::parse(self.next_bytes().unwrap_or(&[]))
      }

      pub fn take<T: Parse>(&mut self, n: usize) -> Take<R, T> {
        Take { scanner: self, n: n, _marker: PhantomData }
      }

      pub fn next_bytes(&mut self) -> Option<&[u8]> {
        if self.buffer.is_empty() {
          self.read_line();
        }
        loop {
          match self.buffer.get(self.position) {
            Some(&b' ') => self.position += 1,
            Some(&b'\n') => self.read_line(),
            Some(_) => break,
            None => return None,
          }
        }
        let start = self.position;
        loop {
          match self.buffer.get(self.position) {
            Some(&b' ') | Some(&b'\n') | None => break,
            Some(_) => self.position += 1,
          }
        }
        Some(&self.buffer[start..self.position])
      }

      fn read_line(&mut self) {
        self.position = 0;
        self.buffer.clear();
        self.reader.read_until(b'\n', &mut self.buffer).unwrap();
      }
    }

    pub struct Take<'a, R: 'a, T> {
      scanner: &'a mut Scanner<R>,
      n: usize,
      _marker: PhantomData<fn() -> T>,
    }

    impl<'a, R: BufRead, T: Parse> Iterator for Take<'a, R, T> {
      type Item = Option<T>;

      fn next(&mut self) -> Option<Self::Item> {
        if self.n > 0 {
          self.n -= 1;
          Some(self.scanner.next())
        } else {
          None
        }
      }

      fn size_hint(&self) -> (usize, Option<usize>) {
        (self.n, Some(self.n))
      }
    }

    impl<'a, R: BufRead, T: Parse> ExactSizeIterator for Take<'a, R, T> {}

    pub trait Parse: Sized {
      fn parse(bytes: &[u8]) -> Option<Self>;
    }

    impl Parse for u8 {
      fn parse(bytes: &[u8]) -> Option<Self> {
        if bytes.len() == 1 {
          Some(*unsafe { bytes.get_unchecked(0) })
        } else {
          None
        }
      }
    }

    macro_rules! parse_impl {
      ($($t:ident)+) => {$(
        impl Parse for $t {
          fn parse(bytes: &[u8]) -> Option<Self> {
            from_utf8(bytes).ok().and_then(|s| $t::from_str(s).ok())
          }
        }
      )+};
    }

    parse_impl! { i32 i64 isize u32 u64 usize String }
  }
}


Measured memory_bytes: 4352