A. Bit++ Solution

#include<bits/stdc++.h>

using namespace std;

int main()

{

         int flag=0,n;

         char s[6];

        

         cin >>n;

         while(n--){

                 scanf("%s",&s);

                 if (s[0] =='+' || s[1]=='+')

                 flag++;

                 else

                 flag--;

         }

         printf("%d\n",flag);

        

         return 0;

        

}