#include<iostream>

using namespace std;

int main() {
	string s;
	cin >> s;
	
	string str;
	for (int i = 0; i < s.size(); i ++ ) {
		if (s[i] >= '0' && s[i] <= '9') {
			str += s[i];
		} else {
			cout << s[i];
		}
	}
	cout << str << endl;
	
	return 0;
}