UVA Problem ID 12403 (Save Setu)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class Main {
	public static void main (String args[]) throws IOException
	{
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringBuilder sb=new StringBuilder(1000);
		int no_of_operations=Integer.parseInt(br.readLine().trim());
		int money=0;
		for(int i=0;i