#include <bits/stdc++.h>
using namespace std;
char c[888];
int main(){
	int konggeshu=0;
	cin.get(c,888);
	for(int i=0;i<888;i++){
		if(c[i]==' ')konggeshu++;
	}
	for(int i=0;i<konggeshu;i++)cout<<' ';
	for(int i=0;i<888;i++){
		if(c[i]==' '||c[i]=='\0')continue;
		cout<<c[i];
	}
	return 0;
}

/**************************************************************
	Problem: 1102
	User: zhouhongyi
	Language: C++
	Result: Accepted
	Time:22 ms
	Memory:2072 kb
****************************************************************/