[백준] 1541번 잃어버린 괄호

import java.util.Scanner;

public class Main {
	
	public static void main(String[] args) {
		
		Scanner kb = new Scanner(System.in);
		
		String s = kb.next();
		String[] nums = s.split("-");
		int[] sum = new int[nums.length];
		
		for(int i=0; i<nums.length; i++) {
			String[] addNums = nums[i].split("\\+");
			for(int j=0; j<addNums.length; j++) {
				sum[i] += Integer.parseInt(addNums[j]);
				
			}
		}
		
		int answer = sum[0];
		
		for(int i=1; i<sum.length; i++) {
			answer-= sum[i];

		}
		
		System.out.print(answer);
	}


}