UVA - 12403 - Save Shetu

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));
        StringBuffer sb=new StringBuffer();
        int cases = Integer.parseInt(br.readLine());
        int report=0;
        for (int i = 0; i < cases; i++) {
           String temp=br.readLine();
           if(temp.equals("report")){
               sb.append(report).append("\n");
           }else{
               String[]str=temp.split(" ");
               int plus=Integer.parseInt(str[1]);
               report+=plus;
           }
        }
        System.out.print(sb);
    }
}