#include <iostream>
#include <string>
using namespace std;

int main ()
{
	//IN;
	string A, B;
	int case_i=0;
	while (1)
	{
		cin>>A>>B;
		if (A=="END" && B=="END") break;
		case_i++;
		//OUT;
		int arrA[128], arrB[128];
		for (int i=32; i<=126; i++)
		{
			arrA[i]=0;
			arrB[i]=0;
		}
		int lenA=A.length();
		int lenB=B.length();
		for (int i=0; i<lenA; i++)
		{
			int cs=A[i]-0;
			arrA[cs]++;
		}
		for (int i=0; i<lenB; i++)
		{
			int cs=B[i]-0;
			arrB[cs]++;
		}
		int kt=1;
		for (int i=97; i<=122; i++)
		{
			if (arrA[i]!=arrB[i])
			{
				kt=0;
				break;
			}
		}
		if (kt==1) cout<<"Case "<<case_i<<": same"<<endl;
		else cout<<"Case "<<case_i<<": different"<<endl;
	}
	
	return 0;
}