#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: wenda
	Language: C++
	Result: Accepted
	Time:18 ms
	Memory:2076 kb
****************************************************************/