#include <vector>
#include <iostream>
using namespace std;

class Sudoku {
  public:
    Sudoku();
    void Print_Screen();
    void Print_Convert();
    bool Solve();
  protected:
    bool Is_Row_Valid(int r);
    bool Is_Col_Valid(int c);
    bool Is_Panel_Valid(int sr, int sc);
    bool Recursive_Solve(int r, int c);
    int Grid[9][9];
    bool checker[10];
};