#include<bits/stdc++.h>
using namespace std;
int main(){
    string s,t1,t2;
    cin>>s;
    int p;
    p=s.find(",");
    t1=s.substr(0,p);
    t2=s.substr(p+1);
    cout<<t2<<','<<t1;
	return 0;
}

/**************************************************************
	Problem: 1116
	User: yangjunwenredianling
	Language: C++
	Result: Accepted
	Time:18 ms
	Memory:2076 kb
****************************************************************/