#include<stdio.h>
#include <bits/stdc++.h>
int main(){
long long t,a,b;
scanf("%lld",&t);
assert(1<=t and t<=1000000);
while(t--){
scanf("%lld %lld",&a,&b);
assert(1<=a and a<=1000000000000000000);
assert(1<=b and b<=1000000000000000000);
assert(a<=b);
long long total=b-a+1;
if(a%2==0){
long long odd=total/2;
if(odd%2==0)
printf("Even\n");
else
printf("Odd\n");
}
else{
long long even=total/2;
long long odd=total-even;
if(odd%2==0)
printf("Even\n");
else
printf("Odd\n");
}
}
}
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