#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <vector>
 
int main()
{
    std::vector<std::vector<int> > distances;
    //std::ifstream MyFile ("file.csv");
    std::istream &MyFile (std::cin);
    //if(MyFile.is_open())
    {
        std::string line;
        while(std::getline(MyFile, line))
        {
            std::istringstream row (line);
            distances.push_back(std::vector<int>());
            std::string cell;
            while(std::getline(row, cell, ','))
            {
                int dist;
                std::istringstream(cell) >> dist;
                distances.back().push_back(dist);
            }
        }
    }
}

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MCwxLDIsMyw0CjQsMywyLDEsMAo5LDgsNyw2LDUKNSw2LDcsOCw5Cg==

0,1,2,3,4
4,3,2,1,0
9,8,7,6,5
5,6,7,8,9