hdu 1846 Brave Game (巴什博弈)

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
int main()
{
int t,n,m;
int i,j,k;
scanf("%d",&t);
while(t--)
{
scanf("%d%d",&n,&m);
if(n%(m+1)!=0)
{
printf("first\n");
}
else printf("second\n");
}
return 0;
}