#[allow(unused_imports)]
use std::char::from_digit;
#[allow(unused_imports)]
use std::cmp::{max, min};
#[allow(unused_imports)]
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque};
#[allow(unused_imports)]
use std::fs::File;
#[allow(unused_imports)]
use std::io::prelude::*;
#[allow(unused_imports)]
use std::io::{stdin, stdout, BufReader, BufWriter, Stdin, Stdout, Write};
#[allow(unused_imports)]
use std::mem::swap;
#[allow(unused_imports)]
use std::str::FromStr;

type BoxResult<T> = Result<T, Box<std::error::Error>>;


fn main() {
    let mut scanner = Scanner::new(stdin());
    let line = scanner.read_vector::<usize>().unwrap();
    let (n, mut a, mut b, mut c) = (line[0], line[1], line[2], line[3]);
    let mut arr = vec![];
    for _ in 0..n {
        let s = scanner.read_chars().unwrap();
        arr.push((s[0], s[1]));
    }
    let mut ans = vec![];
    let mut possible = true;
    for i in 0..n {
        let nxt = if i < n - 1 { arr[i + 1] } else { ('_', '_') };
        if update(&mut a, &mut b, &mut c, &mut ans, arr[i], nxt).is_none() {
            possible = false;
            break;
        }
    }
    if possible {
        let mut writer = BufWriter::new(stdout());
        writeln!(&mut writer, "Yes").unwrap();
        for s in ans.into_iter() {
            writeln!(&mut writer, "{}", s).unwrap();
        }
    } else {
        println!("No");
    }
}

fn update(a: &mut usize, b: &mut usize, c: &mut usize, ans: &mut Vec<char>, crt: (char, char), nxt: (char, char)) -> Option<()> {
    let (x, y, x_nxt, y_nxt) = match crt {
        ('A', 'B') => (a, b, nxt.0 == 'A' || nxt.1 == 'A', nxt.0 == 'B' || nxt.1 == 'B'),
        ('B', 'C') => (b, c, nxt.0 == 'B' || nxt.1 == 'B', nxt.0 == 'C' || nxt.1 == 'C'),
        ('A', 'C') => (a, c, nxt.0 == 'A' || nxt.1 == 'A', nxt.0 == 'C' || nxt.1 == 'C'),
        _ => unreachable!(),      
    };
    if *x > *y {
        *x -= 1;
        *y += 1;
        ans.push(crt.1);
    } else if *x < *y {
        *x += 1;
        *y -= 1;
        ans.push(crt.0);
    } else {
        if *x == 0 {
            return None;
        }
        if x_nxt && !y_nxt {
            *x += 1;
            *y -= 1;
            ans.push(crt.0);
        } else {
            *x -= 1;
            *y += 1;
            ans.push(crt.1);
        }
    }
    Some(())
}


pub struct Scanner<R> {
    reader: BufReader<R>,
    buffer: String,
}
impl<R> Scanner<R>
where
    R: Read,
{
    pub fn new(inner: R) -> Scanner<R> {
        let reader = BufReader::new(inner);
        let buffer = String::new();
        Scanner {
            reader: reader,
            buffer: buffer,
        }
    }
    pub fn with_capacity(capacity: usize, inner: R) -> Scanner<R> {
        let reader = BufReader::with_capacity(capacity, inner);
        let buffer = String::new();
        Scanner {
            reader: reader,
            buffer: buffer,
        }
    }
    pub fn read_line(&mut self) -> BoxResult<String> {
        self.reader.read_line(&mut self.buffer)?;
        let cloned = self.buffer.trim().to_string();
        self.buffer.clear();
        Ok(cloned)
    }
    pub fn read<T>(&mut self) -> BoxResult<T>
    where
        T: FromStr,
        T::Err: std::fmt::Debug,
        T::Err: std::error::Error,
        T::Err: 'static,
    {
        self.reader.read_line(&mut self.buffer)?;
        let parsed = self.buffer.trim().parse()?;
        self.buffer.clear();
        Ok(parsed)
    }
    pub fn read_two<T, U>(&mut self) -> BoxResult<(T, U)>
    where
        T: FromStr,
        T: Copy,
        T::Err: std::fmt::Debug,
        T::Err: std::error::Error,
        T::Err: 'static,
        U: FromStr,
        U: Copy,
        U::Err: std::fmt::Debug,
        U::Err: std::error::Error,
        U::Err: 'static,
    {
        self.reader.read_line(&mut self.buffer)?;
        let (a, b) = {
            let params = self.buffer.trim().split_whitespace().collect::<Vec<_>>();
            let a = params[0].parse()?;
            let b = params[1].parse()?;
            (a, b)
        };
        self.buffer.clear();
        Ok((a, b))
    }
    pub fn read_three<T>(&mut self) -> BoxResult<(T, T, T)>
    where
        T: FromStr,
        T: Copy,
        T::Err: std::fmt::Debug,
        T::Err: std::error::Error,
        T::Err: 'static,
    {
        let nums = self.read_vector()?;
        Ok((nums[0], nums[1], nums[2]))
    }
    pub fn read_vector<T>(&mut self) -> BoxResult<Vec<T>>
    where
        T: FromStr,
        T::Err: std::fmt::Debug,
        T::Err: std::error::Error,
        T::Err: 'static,
    {
        self.reader.read_line(&mut self.buffer)?;
        let parsed_vec = self
            .buffer
            .trim()
            .split_whitespace()
            .map(|s| s.parse())
            .collect::<Result<Vec<_>, _>>()?;
        self.buffer.clear();
        Ok(parsed_vec)
    }
    pub fn read_matrix<T>(&mut self, lines: u64) -> BoxResult<Vec<Vec<T>>>
    where
        T: FromStr,
        T::Err: std::fmt::Debug,
        T::Err: std::error::Error,
        T::Err: 'static,
    {
        let mut parsed_matrix = vec![];
        for _ in 0..lines {
            self.reader.read_line(&mut self.buffer)?;
            parsed_matrix.push(
                self.buffer
                    .trim()
                    .split_whitespace()
                    .map(|s| s.parse())
                    .collect::<Result<Vec<_>, _>>()?,
            );
            self.buffer.clear();
        }
        Ok(parsed_matrix)
    }
    pub fn read_chars(&mut self) -> BoxResult<Vec<char>> {
        self.reader.read_line(&mut self.buffer)?;
        let chars = self.buffer.trim().chars().collect::<Vec<_>>();
        self.buffer.clear();
        Ok(chars)
    }
}


Measured memory_bytes: 3268