**Physical Address**

304 North Cardinal St.

Dorchester Center, MA 02124

Chef is currently working for a secret research group called NEXTGEN. While the rest of the world is still in search of a way to utilize Helium-3 as a fuel, NEXTGEN scientists have been able to achieve 2 major milestones:

- Finding a way to make a nuclear reactor that will be able to utilize Helium-3 as a fuel
- Obtaining every bit of Helium-3 from the moon’s surface

Moving forward, the project requires some government funding for completion, which comes under one condition: to prove its worth, the project should power Chefland by generating at least *A* units of power each year for the next *B* years.

Help Chef determine whether the group will get funded assuming that the moon has *X* grams of Helium-3 and 1 gram of Helium-3 can provide *Y* units of power.

- The first line of input contains an integer
*T*, the number of testcases. The description of*T*test cases follows. - Each test case consists of a single line of input, containing four space-separated integers
*A*,*B*,*X*,*Y*respectively.

For each test case print on a single line the answer — `Yes`

if NEXTGEN satisfies the government’s minimum requirements for funding and `No`

otherwise.

You may print each character of the answer string in either uppercase or lowercase (for example, the strings `"yEs"`

, `"yes"`

, `"Yes"`

and `"YES"`

will all be treated as identical).

- 1≤
*T*≤1000 - 1≤
*A*,*B*,*X*,*Y*,≤1000

**Subtask #1 (100 points):** Original constraints

**Input**: 4
1 2 3 4
4 3 2 1
2 18 9 4
1 100 2 49
**Output**: Yes
No
Yes
No

**Test case 1:** Chefland requires *A*=1 units of power for the next *B*=2 years. In total, the moon must be capable of providing *A*⋅*B*=2 units of power. There are in total *X*=3 grams of Helium-3 on the moon which is capable of providing *X*⋅*Y*=12 units of power. 12>2, so the project satisfies the minimum requirements for funding. Thus, the answer is `Yes`

.

**Test case 2:** The total amount of power needed by Chefland is *A*⋅*B*=12, whereas the total that can be provided by the Helium-3 present on the moon is *X*⋅*Y*=2, which is insufficient to receive funding, so the answer is `No`

.

**Test case 3:** The total amount of power needed by Chefland is *A*⋅*B*=2⋅18=36, and the total that can be provided by the Helium-3 present on the moon is *X*⋅*Y*=9⋅4=36, which is sufficient to receive funding, so the answer is `Yes`

.

**Test case 4:** The total amount of power needed by Chefland is *A*⋅*B*=1⋅100=100, and the total that can be provided by the Helium-3 present on the moon is *X*⋅*Y*=2⋅49=98, which is insufficient to receive funding, so the answer is `No`

.

```
#include <iostream>
using namespace std;
int main() {
int t;
cin>>t;
while(t--){
int a,b,x,y;
cin>>a>>b>>x>>y;
if (a * b <= x * y ) {
cout<<"yes"<<endl;
}
else{
cout<<"no"<<endl;
}
}
// your code goes here
return 0;
}
```

```
# cook your dish here
for _ in range(int(input())):
a,b,x,y=map(int,input().split())
if x*y >= a*b:
print('YES')
else:
print('NO')
```

```
/* package codechef; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
public static void main (String[] args) throws java.lang.Exception
{
Scanner sc=new Scanner(System.in);
int T=sc.nextInt();
for(int i=0;i<T;i++){
int a=sc.nextInt();
int b=sc.nextInt();
int c=sc.nextInt();
int d=sc.nextInt();
if((c*d)>=(a*b)){
System.out.println("Yes");
}
else{
System.out.println("NO");
}
}
}
}
```

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