868 B | 868 chars
#include <bits/stdc++.h>
using namespace std;
int A,B,Cnt=1;
string a;
int main()
{
while(1)
{
cin>>A>>a>>B;
if(a=="E") return 0;
cout<<"Case "<<Cnt<<": ";
Cnt++;
if(a==">")
{
if(A>B) cout<<"true";
else cout<<"false";
}
if(a==">=")
{
if(A>=B) cout<<"true";
else cout<<"false";
}
if(a=="<")
{
if(A<B) cout<<"true";
else cout<<"false";
}
if(a=="<=")
{
if(A<=B) cout<<"true";
else cout<<"false";
}
if(a=="==")
{
if(A==B) cout<<"true";
else cout<<"false";
}
if(a=="!=")
{
if(A!=B) cout<<"true";
else cout<<"false";
}
cout<<endl;
}
}