#include <iostream>
#include <???>

using namespace std;
int main(){
  int a,b,c,d,e,h,i;
  cin >> a;
  for(???){
    cin >> b;
    cin >> c;
    e = 0;
    for(i=b;i<=c;i++){
      if (sqrt(i)==???/*%不可以除小數*/){
        e += i;
      }
    }cout << "Case " << h << ": " << e << endl;
  }
}


//(???代表試試看))