/*Filip Hrenic

Prva gimnazija Varazdin

Varazdin, Croatia

ACSL 2009-2010

Junior

Contest #1

Problem: "Golf"*/

#include <cstdio>

#include <cstring>

using namespace std;

int a,b,br;

int main(){

for(int i=0;i<4;i++){

scanf("%d %d",&a,&b);

br+=(a-b);

a=a-b+2;

if (a==0) printf("double bogey\n");

if (a==1) printf("bogey\n");

if (a==2) printf("par\n");

if (a==3) printf("birdie\n");

if (a==4) printf("eagle\n");

}

if (br>0) printf("%d under par\n",br);

if (br<0) printf("%d over par\n",br*(-1));

if (br==0) printf("par\n");

return 0;

}