#include<bits/stdc++.h>
using namespace std;
int main(){
    string s,s1,s2;
    cin>>s;
    int p=s.find(',');
    s1=s.substr(0,p);
    s2=s.substr(p+1);
    cout<<s2<<','<<s1;
     
    return 0;
/**************************************************************
	Problem: 1116
	User: huxuanchen
	Language: C++
	Result: Compile Error
****************************************************************/