Bit++.cpp

/* The classic programming language of Bitland is Bit++. This language is so peculiar and complicated.

The language is that peculiar as it has exactly one variable, called x. Also, there are two operations:

Operation ++ increases the value of variable x by 1.
Operation -- decreases the value of variable x by 1.
A statement in language Bit++ is a sequence, consisting of exactly one operation and one variable x. 
The statement is written without spaces, that is, it can only contain characters "+", "-", "X". 
Executing a statement means applying the operation it contains.

A programme in Bit++ is a sequence of statements, each of them needs to be executed. 
Executing a programme means executing all the statements it contains.

You're given a programme in language Bit++. The initial value of x is 0. 
Execute the programme and find its final value (the value of the variable when this programme is executed).

Input
The first line contains a single integer n (1 ≤ n ≤ 150) — the number of statements in the programme.

Next n lines contain a statement each. Each statement contains exactly one operation (++ or --) and exactly one variable x (denoted as letter «X»). 
hus, there are no empty statements. The operation and the variable can be written in any order.

Output
Print a single integer — the final value of x. */

#include <iostream>
 
using namespace std;

int main()
{
    int x = 0;
    int n;
    string op;
    cin >> n;
    for(int i = 0; i < n; i++){
        cin >> op;
        if(op == "X++" || op == "++X"){
            x = x + 1;
        }else {
            x = x - 1;
        }
    }
    cout << x;
 
    return 0;
}