#include <iostream>
#include<string.h>
#include<cstring>
using namespace std;
int main() {
// int a,count1,count2,count,n,i,p,r,q,coun=0;
int t,n,i;
cin>>t;
string p,out;
while(t--)
{
cin>>n>>p;
int a[n];
for(i=0;i<n;i++)
{cin>>a[i]; }
if(n==1)
{
if(p=="Dee"&& a[0]%2==0)
{
cout<<"Dee\n";
}
else
{
cout<<"Dum\n";
}
}
else if(n>1)
{
// cout<<"hello"<<endl;
cout<<"Dum\n";
}
//cout<<out<<endl;
}
}
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