#include <stdio.h> int main() { char arr[1000] = { 0 }; gets(arr);
int n = 0, i = 0, j = 0;
while (arr[n] != '\0')
n++;
char tmp = 0;
for (i = 0; i < n; i++)
{
int flg = 1;
for (j = 0; j < n - i - 1; j++)
{
if (arr[j] > arr[j + 1])
{
tmp = arr[j];
arr[j] = arr[j + 1];
arr[j + 1] = tmp;
flg = 0;
}
}
if (flg)
break;
}
printf("%s\n", arr);
return 0;
}