biryani classes

Problem
According to a recent survey, Biryani is the most ordered food.
Chef wants to learn how to make world-class Biryani from a MasterChef.
Chef will be required to attend the MasterChef's classes for X weeks, and the cost of classes per week is Y coins.
What is the total amount of money that Chef will have to pay?

Input Format
The first line of input will contain an integer T — the number of test cases.
The description of T test cases follows.
The first and only line of each test case contains two space-separated integers X and Y, as described in the problem statement.

/* 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=a*b;
		    System.out.println(c);
		}// your code goes here
	}
}