#include<bits/stdc++.h>
using namespace std;

int main(){
	string s;
	int a[200]={0};
	getline(cin,s);
	for(int i=0;i<s.size();i++){
		a[s[i]]++;
	}
	for(int i=97;i<=97+25;i++){
		if(a[i]!=0){
			cout<<(char)i;
		}
	}
	cout<<endl;
	for(int i=97;i<=97+25;i++){
		if(a[i]!=0){
			cout<<a[i];
		}
	}
}
/**************************************************************
	Problem: 1177
	User: linzihang
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2076 kb
****************************************************************/