#include <stdio.h>
int compare(char *s,char *c){return*c-*s;}int main(){char w[40];int c,i=0;while(
1){c=getchar();if(c<=32||c==EOF){qsort(w,i,1,compare);w[i]=0;printf("%s",w);if(c
==EOF)break;putchar(c);i=0;}else{w[i++]=c;}}}