#include<bits/stdc++.h>
using namespace std;
string s;
int h;
int main(){
	getline(cin,s);
	for(int i=0;i<s.size();++i){
		if(s[i]==' ') h++;
	}
	for(int i=1;i<=h;i++) cout<<" ";
	
	for(int i=0;i<s.size();++i){
		if(s[i]==' ') continue;
		cout<<s[i];
	}

	return 0;
}

/**************************************************************
	Problem: 1102
	User: hongjiaming
	Language: C++
	Result: Accepted
	Time:22 ms
	Memory:2076 kb
****************************************************************/