fn read<T: std::str::FromStr>() -> T {
  let mut s = String::new();
  std::io::stdin().read_line(&mut s).ok();
  s.trim().parse().ok().unwrap()
}

fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}
fn main() {
  let n: usize = read();
  let ps = (0..n).map(|_| {
              let input:Vec<usize> = read_vec();
              (input[0], input[1])
            }).collect::<Vec<(usize,usize)>>();
  println!("{}", no1041(ps));
}

fn no1041(ps:Vec<(usize,usize)>) -> usize {
  let in_line = |(x1,y1):&(usize,usize),(x2,y2):&(usize,usize),(x3,y3):&(usize,usize)| -> bool {
    let x1 = *x1 as f64;
    let y1 = *y1 as f64;
    let x2 = *x2 as f64;
    let y2 = *y2 as f64;
    let x3 = *x3 as f64;
    let y3 = *y3 as f64;
    if x2-x1 == 0.0 && x3-x1 == 0.0 || y2-y1 == 0.0 && y3-y1 == 0.0 {
      true
    } else if x2-x1 != 0.0 && x3-x1 != 0.0 {
      (y2-y1)/(x2-x1) == (y3-y1)/(x3-x1)
    } else {
      false
    }
  };

  let mut counter:Vec<Vec<usize>> = vec![vec![2;ps.len()];ps.len()];
  
  for i in 0..ps.len()-2 {
    for j in i+1..ps.len()-1 {
      counter[i][j] = 2;
      for k in j+1..ps.len() {
        if in_line(&ps[i],&ps[j],&ps[k]) {
          counter[i][j] += 1;
        }
      }
    }
  }

  let mut max = 0;
  for a in counter {
    for b in a {
      if b > max {
        max = b;
      }
    }
  }
  max
}