Problem ID: 9483
#include<bits/stdc++.h>
using namespace std;
int main()
{
int Maoge,a,b,c,d,e,z,x;
cin>>Maoge>>a>>b>>c>>d>>e;
z=max(max(max(max(max(Maoge,a),b),c),d),e);
if(z==Maoge){x=max(max(max(max(e,a),b),c),d);}
if(z==Maoge){cout<<x-z;}
if(z!=Maoge){cout<<z-Maoge;}
return 0;
}