ABC101A - Eating Symbols Easy

問題：A - Eating Symbols Easy

#include <iostream>
#include <string>
using namespace std;

#define REP(i, n) for (int i = 0; i < (n); ++i)

int getCount(string x_s, char x_op) {
    int cnt = 0;

    REP(i, x_s.length()) {
        if (x_s[i] == x_op) {
            ++cnt;
        }
    }

    return cnt;
}

int main(void) {
    string s;
    
    cin.tie(0);
    ios::sync_with_stdio(false);
    cin >> s;
    cout << getCount(s, '+') - getCount(s, '-') << "\n";
    return 0;
}