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

int main()
{
    int n,i,j,k,first,last,flag=1,c,d;
    char str[10];

    scanf("%d",&n);
    getchar();
    for(i=1;i<=n;i++)
    {
        gets(str);
        j=strlen(str);
        first=0;
        last=j-1;
        c=0;d=0;
        for(k=0;k<j;k++)
        {
              printf("Checking position %d and %d  >> ",first,last);
              if(str[first]!=str[last])
              {
                  printf("Didn't match. So it's not palindrome\n");
                  flag=0;
                  break;
              }
              else
                  printf("matched\n");
              first++;
              last--;
        }
        if(flag==0)
        printf("Case %d: No\n",i);
        else
        printf("Case %d: Yes\n",i);
    }
    getchar();
}