#include<iostream> | |
#include<cstring> | |
using namespace std; | |
int main() | |
{ | |
const int MAX= 1000*1001/2; | |
bool prime[MAX+1]; | |
memset(prime,true,sizeof(prime)); | |
prime[0]=prime[1]=false; | |
for(int i=2;i<=MAX;i++) | |
{ | |
if(prime[i]) | |
for(int j=i+i;j<=MAX;j+=i) | |
prime[j]=false; | |
} | |
int n; | |
cin>>n; | |
if(prime[n*(n+1)/2]) | |
cout<<"WANWAN"<<endl; | |
else | |
cout<<"BOWWOW"<<endl; | |
} |
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