#include <iostream>
#include <string>
#include <boost/algorithm/string.hpp>
#include <sstream>
using namespace std;
int main(){
string line = "1,2,3\n4,5,6\n7,8,9";
string arr[3];
int i = 0;
boost::erase_all(line, ",");
boost::erase_all(line, "\\n");
stringstream ss(line);
while (ss.good() && i < 3){
ss >> arr[i];
++i;
}
for(i = 0; i < 3; i++){
cout << arr[i] << endl;
}
return 0;
}