18.9

#include <iostream>

using namespace std;

int main()
{
    int n,i,v[100],k=0,x,j,aux;
    cin>>n;
    x=n;
    while (x)
    {
    k++;
    v[k]=x%10;
    x=x/10;
    }
      for (i = 0; i <=k-1; i++)
        {for (j= +1; j <= k; j++)
            if (v [i] < v [j])
            {
                aux=v[i];
                v[i]=v[j];
                v[j] =aux;
            }
        }

        for (i=1;i<=k;i++)
        x=x*10+v[i];

        for (i=1;i<=k;i++)
        cout<<x<<" ";
    return 0;
}