#include<stdio.h>
#include<stdlib.h>
int main()
{
 
 int T,i,j,arr[100005][6];
 scanf("%d\n", &T);
 for(i=1;i<=T;i++)
 {
     for(j=1;j<=5;j++)
     {
 
      scanf("%d", &arr[i][j]);
     }
 }
 for(i=1,j=1;i<=T;i++)
 {
 
 if((arr[i][j+2]-arr[i][j])==(arr[i][j+1]-arr[i][j+2]))
 {
 if(arr[i][j+3]>arr[i][j+4])
 {
 printf("Chef\n");
 }
 else if(arr[i][j+3]<arr[i][j+4])
 {
 printf("Kefa\n");
 }
 else
 {
 printf("Draw\n");
 }
 }
 else if((arr[i][j+2]-arr[i][j])<(arr[i][j+1]-arr[i][j+2]))
 {
 printf("Chef\n");
 }
 }
 
 return 0;
 } 

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MwoxIDMgMiAxIDIKMSA1IDIgMSAyCjEgNSAzIDIgMg==

3
1 3 2 1 2
1 5 2 1 2
1 5 3 2 2