import java.io.BufferedReader; import java.io.InputStreamReader; public class Solution { public static void main(String[] args) throws Exception { BufferedReader rd = new BufferedReader(new InputStreamReader(System.in)); int summ = 0; for (;true;) { String money = rd.readLine(); if (!money.equals("сумма")) summ = summ + Integer.parseInt(money); else { System.out.println(summ); break; } } } }