#include<cstdio>
using namespace std;
int main(){
	int a;
	double bike,walk;
	scanf("%d",&a);
	walk=a/1.2;
	bike=a/3+27+23;
	if(walk<bike){
		printf("Walk");
	}else if(walk>bike){
		printf("Bike");
	}else{
		printf("All");
	}
	return 0;
}