def separateNumbers(s):
    n = len(s)
    if n == 1 or s[0] == 0:
        return 'NO'
    mid = n//2
    i = 0
    while i < mid:
        temp = initial = s[:i+1]
        step = int(temp)
        while len(temp) < n:
            temp += str(step+1)
            step += 1

        if temp == s:
            return 'YES ' + initial
        else:
            i += 1
    return 'NO'

function separateNumbers(s) {
    // Write your code here
    for (let i = 0; i <= Math.floor(s.length / 2); i++){
        let char = s.slice(0, i)
        let num = BigInt(char);
        let newStr = ''
        while(newStr.length < s.length)  newStr += num++
        
        if(newStr === s){
          console.log('YES' , char)
          return;
        }
    }
    console.log('NO')

}

void separateNumbers(string s) {
    int bl = 1;
    bool f = false;
    while(bl * 2 <= s.size()){
        string base = s.substr(0, bl);
        string newString = "";
        long baselong = atol(base.c_str());
        do{
            newString += to_string(baselong);
            baselong++;
        }while(newString.size() < s.size());
        if(newString == s) {cout << "YES " << base;f = true;break;}
        bl++;
    }
    if(!f) cout << "NO";
    cout << endl;
}

fn separateNumbers(s: &str) {
    for i in 0..s.len() / 2 {
        let num_curr = s[..=i]
            .parse::<i64>()
            .expect("parse failed");
            
        let mut str_beaut = s[..=i].to_string();
        let mut num_next = num_curr;
        
        while str_beaut.len() < s.len() {
            num_next += 1;
            str_beaut.push_str(&num_next.to_string());
        }
        
        if str_beaut == s {
            println!("YES {}", num_curr);
            return;
        }
    }
    
    println!("NO");
}