#include<stdio.h>

int main() {
   int distence;
   scanf("%d",&distence);
   if(distence/1.2>(distence+150)/3.0){
       printf("Bike");
   } else if(distence/1.2==(distence+150)/3.0){
       printf("All");
   } else if(distence/1.2<(distence+150)/3.0){
       printf("Walk");
   }
   return 0;
   }