#include <iostream>
#include <vector>

using namespace std;

struct machine{
  int usage;
  int recovery;
};

int main(){
  vector<machine> jim(10);
  for(int i = 0; i < 10; i++){
    cin >> jim[i].usage;
    cin >> jim[i].recovery;
  }
  vector<machine> others(10);
  vector<int> starts(10);
  int cur_time = 0;
  for(int i = 0; i < 10; i++){
    cin >> others[i].usage;
    cin >> others[i].recovery;
    cin >> starts[i];
    cur_time = min(cur_time, starts[i]);
  }


  int cur_rotation = 1;
  int cur_machine = 0;
  bool done = false;
  vector<bool> in_use(10, false);

  bool jim_using = false;
  bool jims_resting = false;
  int jims_done = 0;
  while(!done){
//     cout << "Time = " << cur_time << endl;
    for(int i = 0; i < 10; i++){
      if(cur_time == starts[i] && cur_machine == i && jim_using){

	starts[i] = jims_done;
		//cout << "Machine " << i << " gets delayed till " << starts[i];
      }
      if(cur_time == starts[i]){
		//cout << "User starts using machine " << i << endl;
	in_use[i] = true;
      }

      if(in_use[i] && cur_time == starts[i] + others[i].usage){
		//cout << "User stops using machine " << i << endl;
	in_use[i] = false;
	starts[i] = cur_time + others[i].recovery;
      }
      if(cur_machine == i){
	if(cur_time >= 0 && jims_resting && jims_done == cur_time){
//	    cout << "Jim is done resting" << endl;
	  jims_resting = false;
	  cur_machine = (cur_machine+1)%10;
	  if(cur_machine == 0){
	    cur_rotation++;

	      cur_time--;

	  }
	}
      }

      if(cur_machine == i){
	if(cur_time >=0 && jim_using && cur_time == jims_done){
	//  	 cout << "Jim is done with machine " << i << endl;
	  jim_using = false;
	  jims_resting = true;
	  if(cur_rotation == 3 && cur_machine == 9)
	    done = true;
	  jims_done = cur_time + jim[i].recovery;
	}
	if(cur_time >=0 && !jim_using && !jims_resting){
	  if(!in_use[i]){
	  //    cout << "Jim starts using machine  " << i << endl;
	    jim_using = true;
	    jims_done = cur_time + jim[i].usage;
	  }
	}
      }
    }
    if(!done)
      cur_time++;
  }
  cout << cur_time << endl;
  return 0;
}