#include<iostream>
#include<fstream>
#include<string>
using namespace std;

struct Pixel
{
	unsigned char blue;
	unsigned char green;
	unsigned char red;

	void display()
	{
		//cout << "(" << (int)red << "," << (int)green << "," << (int)blue << ")";
		if(blue > red && blue > green)
		{
			cout << "B";
		}
		else if(red > green)
		{
			cout << "R";
		}
		else
		{
			cout << "G";
		}
	}

};

struct FileStruct
{
	char type[3];

	FileStruct()
	{
		type[2] = '\0';
	}

};


void main()
{
	FileStruct fs;
	//fs.type[2] = '\0'; 

	cout << (ios_base::in | ios_base::out |ios_base::binary) << endl;
	cout << ios_base::in << endl;
	cout << ios_base::out << endl;
	cout << ios_base::binary << endl;

	fstream fin("bflag.bmp", ios_base::in | ios_base::out |ios_base::binary);

	char bfType[3] = {0};
	unsigned int bfSize;
	unsigned int biWidth;
	unsigned int biHeight;

	fin.read(bfType,2);
	fin.read((char*)&bfSize,4);

	//fin.seekg(18, ios_base::cur);
	fin.seekg(18, ios_base::beg);
	//fin.seekg(18, ios_base::end);

	fin.read((char*)&biWidth,4);
	fin.read((char*)&biHeight,4);

	//swap(biWidth, biHeight);

	//fin.seekp(18, ios_base::beg);
	//fin.write((char*)&biHeight,4);
	//fin.write((char*)&biWidth,4);
	
	cout << bfType << endl;
	cout << bfSize << endl;

	cout << biWidth << endl;
	cout << biHeight << endl;


	fin.seekg(54, ios_base::beg);

	//for(int i = 0; i < biWidth * biHeight; i++)
	//{
	//	Pixel p;
	//	fin.read((char*)&p,3);

	//	//fin.read((char*)&p.blue,1);
	//	//fin.read((char*)&p.green,1);
	//	//fin.read((char*)&p.red,1);
	//	p.display();
	//}

	for(int i = 0; i < biHeight; i++)
	{
		for(int j= 0 ; j < biWidth; j++)
		{
			Pixel p;
			fin.read((char*)&p,3);
			p.display();
		}
		cout << endl;
	}




	fin.close();
}