Help me in solving WAITTIME problem

My issue

My code

/* package codechef; // don't place package name! */

import java.util.*;
import java.lang.*;

/* 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
		// your code goes here
		Scanner sc =new Scanner(;
		int t=sc.nextInt();
		for(int i=0; i<t;i++){
		    int a =sc.nextInt();
		    int b=sc.nextInt();
		    int c =sc.nextInt();

Problem Link: WAITTIME Problem - CodeChef