fn main() {
    let mut mat: Vec<Vec<String>> = read_mat(read::<u32>());

    for row in &mut mat {
        if row[4] == String::from("YES") {
            row[4] = String::from("1");
        }
        else if row[4] == String::from("NO") {
            row[4] = String::from("0");
        }
    }

    let mat: Vec<Vec<u32>> = mat.into_iter().map(|row| {
        row.into_iter().map(|e| {
            e.parse::<u32>().ok().unwrap()
        }).collect()
    }).collect();

    let mut counter = [0i32; 10];

    for row in mat {
        if row[4] == 1 {
            for i in 0..4 {
                counter[row[i] as usize] += 1;
            }
        }
        else {
            for i in 0..4 {
                counter[row[i] as usize] -= 1;
            }
        }
    }

    let mut i = 0;
    for (j, &value) in counter.iter().enumerate() {
        if value > counter[i] {
            i = j;
        }
    }

    println!("{}", i);
}

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 read_mat<T: std::str::FromStr>(row: u32) -> Vec<Vec<T>> {
    let mut vec = Vec::new();

    for _i in 0..row {
        vec.push(read_vec::<T>());
    }

    vec
}