#include <stdio.h>
#include <string.h>

int main()
{
    int z, i, fail;
    char txt1[1005], txt2[1005];
    char rp1[30], rp2[30];

    z = 1;
    while (scanf (" %s %s", txt1, txt2)) {
        if (strcmp(txt1, "END") == 0 && strcmp(txt2, "END") == 0) {
            break;
        }

        for (i = 0; i < 26; i++)
            rp1[i] = rp2[i] = 0;
        fail = false;

        for (i = 0; txt1[i] != '\0'; i++)
            rp1[txt1[i] - 'a']++;
        for (i = 0; txt2[i] != '\0'; i++)
            rp2[txt2[i] - 'a']++;

        printf("Case %d: ", z++);
        for (i = 0; i < 26; i++) {
            if (rp1[i] != rp2[i])
                fail = true;
        }

        printf("%s\n", fail?"different":"same");
    }

    return 0;
}