#include<bits/stdc++.h>
using namespace std;
int main(){
	string a,a1,a2;
	cin>>a;
	int p=a.find(',');
	a1=a.substr(0,p);
	a2=a.substr(p+1,a.size()-p-1);
	cout<<a2+','+a1;

	return 0;
}

/**************************************************************
	Problem: 1116
	User: wuweimo
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/