#include<iostream>
#include<iomanip>
#include<cmath>
using namespace std;
int main()
{
int x,a,b,c;
cin>>x;
a=x%10;
b=x/10%10;
c=x/100;
if(a>=b)
{
if(b>=c)
cout<<a<<b<<c<<endl;
else
cout<<a<<c<<b<<endl;
}
else if(b>=c)
{
if(c>=a)
cout<<b<<c<<a<<endl;
else
cout<<b<<a<<c<<endl;
}
else if(c>=a)
{
if(a>=b)
cout<<c<<a<<b<<endl;
else
cout<<c<<b<<a<<endl;
}
return 0;
}

#include<bits/stdc++.h>
using namespace std;
long long n,a[3];
int main()
{

cin>>n;
a[1]=n/100;
a[2]=n/10%10;
a[3]=n%10;
sort(a+1,a+4);
cout<<a[3]<<a[2]<<a[1];
return 0;
}

#include<iostream>
#include<cmath>
using namespace std;
int main( )
{
    int a,b,c,t;
    cin>>t;
    a=t/100;
    b=t/10%10;
    c=t%10;
    if(a>b)
    if(b>c)
    cout<<100*a+10*b+c;
else if(c>a)
cout<<100*c+10*a+b;
else
cout<<100*a+10*c+b;
else
if(a>c)
cout<<100*b+10*a+c;
else if(c>b)
cout<<100*c+10*b+a;
else
cout<<100*b+10*c+a;
return 0;
}