#include<stdio.h>
#include<stdlib.h>
int main(void){
	int num;
	double m,p,result;
	while(scanf("%d",&num)!=EOF){
		while(num>0){
			scanf("%lf%lf",&m,&p);
			result=(p-m)/m*100;
			if(result>=10||result<=-7){
				printf("%0.2lf%% dispose\n",result);
			}
			else{
			
				printf("%0.2lf%% keep\n",result);
			}
			num-=1;
		}
	}
	return 0;
}