Help me in solving GSJ213B problem

My issue

when should we use i=0 and when should we use i=1?

My code

// Change the 'custom inputs' below and click 'run'
// Click on 'Submit' once you have tried out to proceed to the next problem

import java.util.Scanner;

class Codechef
	public static void main (String[] args)
        Scanner read = new Scanner(;
        int t = read.nextInt();
        for(int i=0; i<t; i++)
            int n = read.nextInt();

Learning course: Java for problem solving - 1
Problem Link: CodeChef: Practical coding for everyone

Its does matter like if u want to run loop t time then if u begin with i=0 then it should run <t means upto t-1 and if u begin with i=1 then it should run upto t .