Contest1340/A.java

import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner cin = new Scanner(System.in);
        int sum = 0;
        while (cin.hasNext()) {
            String x = cin.next();
            String s[] = x.split("\\D+");
            if (s.length != 3) {
                continue;
            } else {
                long a = Long.parseLong(s[0]);
                long b = Long.parseLong(s[1]);
                long c = Long.parseLong(s[2]);
                if (x.indexOf("+") > 0) {
                    if (a + b == c) {
                        sum++;
                    }
                } else {
                    if (Math.abs(a - b) == c) {
                        sum++;
                    }
                }
            }
        }
        System.out.println("RIGHT:" + sum);
    }
}