#include<bits/stdc++.h>
using namespace std;
int main() {
    string a;
    cin>>a;
    string b;
    for (int i = 0; i < a.size(); ++i) {
        if(!(a[i]>='0' && a[i]<='9')){
            b+=a[i];
        }
    }
    for (int i = 0; i < a.size(); ++i) {
        if((a[i]>='0' && a[i]<='9')){
            b+=a[i];
        }
    }
    cout<<b;


    return 0;
}