#include<bits/stdc++.h>
using namespace std;
int main(){
	string s,s1,s2;
	getline (cin,s);
	int p=s.find(',');
	s1=s.substr(0,p);
	s2=s.substr(p+1);
	cout<<s2<<','<<s1;
}
/**************************************************************
	Problem: 1116
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:17 ms
	Memory:2076 kb
****************************************************************/