#include<stdio.h>
int main(){
    int t,s,i,d,b,k,n,m;
    n=2;
    m=0;
    scanf("%d",&t);
    for(s=1;s<=t;s++){
        scanf("%d",&d);
        for(i=0;d>0;i++){
            k=d%n;
            d=d/n;
            m=m+k;
        }
        if(m%2==0){
        printf("Case %d: Even",s);
        }else{
        printf("Case %d: Odd",s);
        }
        printf("\n");
    }
    return 0;
}