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

int main()
{
    char name[100];
    int i,length,j,n;

    scanf("%d",&n);

    for(i=1;i<=n+1;i++){
        gets(name);

        length = strlen(name);

        for(j=0;j<length;j++){

        if(name[j]>=97 && name[j]<=122){
            name[j] = 'A' + (name[j] - 'a');
        }
         printf("Case %d: %s\n",i-1,name);
        break;
    }


    }
    return 0;
}