#include using namespace std; #define rep(i,a,b) for(int i=a;i'9'){if(ch=='-')w=-1;ch=getchar();} while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar(); return s*w; } inline void write(int x) { if(x<0) putchar('-'),x=-x; if(x>9) write(x/10); putchar(x%10+'0'); } int t,n,ma,mi,av; int main() { t=read(); while(t--){ scanf("%d %d %d %d",&n,&ma,&mi,&av); if(ma=x&&mi*(n-2)<=x) printf("yes\n"); else printf("no\n"); } return 0; }