PAINTING C++

#include <bits/stdc++.h> 
#define name "PAINTING" 
using namespace std; 
int n,a,b,k; 
void giai()
{
    cin>>a>>b; 
int res=min(a,min(b,min(n-a+1,n-b+1))); 
if(res % 3 == 1) cout<<"RED"; 
else if(res % 3 == 2) 
cout<<"BLUE"; 
else cout<<"YELLOW"; 
cout<<endl;
}
int main() { 
    // freopen(name".inp","r",stdin); 
    // freopen(name".out","w",stdout); 
    cin>>n>>k; 
    for(int i = 1; i <= k; i++) 
        giai(); 
}