giup minh voi cac ban oi

#include <iostream>
using namespace std;
int main() {
    string n,odd;
    cin >> n;
    for (int i = n.length() - 1; i >= 0; i--)
        if (!(n[i] & 1)) cout << n[i];
        else odd = odd + n[i];
    cout << '\n' << odd;
    return 0;
}

\begin{array}{c} \color{#db1616}{\texttt{#Khoadang09}} \end{array}

#include <bits/stdc++.h>
using namespace std;
int main(){
    string s; cin >> s;
    reverse(s.begin(),s.end());
    for(char i:s) if ((i-'0')%2==0) cout << i ;
    cout << endl;
    for(char i:s) if ((i-'0')%2!=0) cout << i ;
}