#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <string>
using namespace std;

int main()
{
    int N = 1233;
    int claims[N][4]={0};
    int temp = 0;
    int PlayingField[10][10]={0};
    ifstream ReadingFile;
    ReadingFile.open("D:\\Programming\\AOP2018\\Day3\\input.txt");
    if(ReadingFile.is_open()){
        string line;
        int intLine;
        int i = 0;
        while (getline(ReadingFile,line)){
            int pos = line.find('@');
            line = line.substr(pos+2, string::npos); //remove unnecessary header.
            pos = line.find(',');
            int pos2 = line.find(':');
            int pos3 = line.find('x');
            claims[i][0] = atoi(line.substr(0,pos).c_str());
            claims[i][1] = atoi(line.substr(pos+1, pos2-pos).c_str());
            claims[i][2] = atoi(line.substr(pos2+2, pos3-2-pos2).c_str());
            claims[i][3] = atoi(line.substr(pos3+1, string::npos).c_str());
            cout << claims [i][0] << "," << claims [i][1] << "," << claims [i][2] << "," << claims [i][3] << endl;
            i++;
            }


    }
    int count=0;
    for (int i=0; i<N; i++){
        for(int j=claims[i][1]; j<claims[i][1]+claims[i][3]; j++){
            for(int k=claims[i][2]; k<claims[i][2]+claims[i][4]; k++){
                PlayingField[j][k]++;
            }
        }
    }


    for(int i=0; i<10; i++){
        for(int j=0; j<10; j++){
            if(PlayingField[i][j]<=2){
                count++;
            }
        }
    }
    cout << count << endl;
    return 0;
}