#include<stdio.h>
#include<ctype.h>
#include<string.h>
int main(){
	char a[100];
	gets(a);
	int i,len=strlen(a);
	for(i=0;i<len;i++){
		if(isspace(a[i])!=0){
			printf("%c",a[i]);
			
		} 
	}
	for(i=0;i<len;i++){
		if(isspace(a[i])==0){
			printf("%c",a[i]);
			
		} 
	}	


	return 0;
}
/**************************************************************
	Problem: 1102
	User: admin
	Language: C
	Result: Accepted
	Time:23 ms
	Memory:1036 kb
****************************************************************/