#include<bits/stdc++.h>
using namespace std;
int main(){
string s,s1,s2;
cin>>s;
int p;
	p=s.find(',');
    s1=s.substr(0,p);
    s2=s.substr(p+1,s.size()-p-1);
    cout<<s2<<','<<s1;
    return 0;
}
/**************************************************************
	Problem: 1116
	User: wuzhijing
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/