#include <fstream>
#include <iostream>
#include <vector>

class Options{
private:
    std::string options;
public:
    enum TYPE{};
    int getNum(){
        return options.length();
    }
};

class Sudoku{
private:
    const int ROWS_NUM=16;
    const int COLS_NUM=16;
    std::vector<std::vector<Options>> grid;

public:
    Sudoku(){
        grid.resize(ROWS_NUM);
        for(int i=0;i<ROWS_NUM;i++){
            grid[i].resize(COLS_NUM);
        }
    }
    void solve(){

    }
    void read(std::string fileName){
        std::ifstream fin(fileName);
        char c;
        for(int i=0;i<ROWS_NUM;i++){
            for(int j=0;j<COLS_NUM;j++){
                fin>>c;
                grid[i][j]=ctoi(c);
            }
        }
        fin.close();
    }
    void write(std::string fileName){
        std::ofstream fout(fileName);
        for(int i=0;i<ROWS_NUM;i++){
            for(int j=0;j<COLS_NUM;j++){
                fout<<grid[i][j];
            }
            fout<<"\n";
        }
        fout.close();
    }
    int ctoi(char c){
        if(c=='-'){
            return 0;
        } else{
            return c-64;
        }
    }
    char itoc(int i){
        if(i==0){
            return '-';
        } else{
            char c=64;
            c+=i;
            return c;
        }
    }
};

int main(int argc, const char * argv[]) {
    Sudoku sudoku;
    sudoku.read("input.txt");
    sudoku.solve();
    sudoku.write("output.txt");

//    std::cout<<"GGG\n";
//    char c1;
//    while(true){
//        std::cin>>c1;
//        std::cout<<sudoku.ctoi(c1)<<std::endl;
//        std::cout<<sudoku.itoc(sudoku.ctoi(c1))<<std::endl;
//    }
    return 0;
}