#include <bits/stdc++.h>
using namespace std;
 
int main() {
    int n; 
    cin >> n;
    int X = 0; // Initialize a variable to hold the value
 
    while (n--) {
        string z;
        cin >> z;
 
        if (z == "++X" || z == "X++") {
            n += 1;  // Increment X
        } 
        else if (z == "X--" || z == "--X") {
            n -= 1;  // Decrement X
        }
    }
 
    cout << X << endl; // Print the final value of X
    return 0;  // Indicate successful execution
}
 

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MQp4Kys=

1
x++