Go: package main

import (
	"bufio"
	"os"
	"strings"
	"strconv"
	"fmt"
)

func rangeCheck(x, y int) bool {
	if x >= 0 && x <= 9 && y >= 0 && y <= 9 {
		return true
	} else {
		return false
	}
}

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	paper := make([][]int, 10)
	for i := range paper {
		paper[i] = make([]int, 10)
		for j := range paper[i] {
			paper[i][j] = 0
		}
	}
	// fmt.Println(paper)
	for scanner.Scan() {
		infos := strings.Split(scanner.Text(), ",")
		x, _ := strconv.Atoi(infos[0])
		y, _ := strconv.Atoi(infos[1])
		s, _ := strconv.Atoi(infos[2])
		// fmt.Println(x, y, s)
		switch s {
		case 1:
			paper[x][y]++
			if rangeCheck(x, y-1) {
				paper[x][y-1]++
			}
			if rangeCheck(x, y+1) {
				paper[x][y+1]++
			}
			if rangeCheck(x-1, y) {
				paper[x-1][y]++
			}
			if rangeCheck(x+1, y) {
				paper[x+1][y]++
			}
			continue
		case 2:
			paper[x][y]++
			if rangeCheck(x-1, y-1) {
				paper[x-1][y-1]++
			}
			if rangeCheck(x, y-1) {
				paper[x][y-1]++
			}
			if rangeCheck(x+1, y-1) {
				paper[x+1][y-1]++
			}
			if rangeCheck(x-1, y) {
				paper[x-1][y]++
			}
			if rangeCheck(x+1, y) {
				paper[x+1][y]++
			}
			if rangeCheck(x-1, y+1) {
				paper[x-1][y+1]++
			}
			if rangeCheck(x, y+1) {
				paper[x][y+1]++
			}
			if rangeCheck(x+1, y+1) {
				paper[x+1][y+1]++
			}
			continue
		case 3:
			paper[x][y]++
			if rangeCheck(x-1,y-1) {
				paper[x-1][y-1]++
			}
			if rangeCheck(x,y-1) {
				paper[x][y-1]++
			}
			if rangeCheck(x+1,y-1) {
				paper[x+1][y-1]++
			}
			if rangeCheck(x-1,y) {
				paper[x-1][y]++
			}
			if rangeCheck(x+1,y) {
				paper[x+1][y]++
			}
			if rangeCheck(x-1,y+1) {
				paper[x-1][y+1]++
			}
			if rangeCheck(x,y+1) {
				paper[x][y+1]++
			}
			if rangeCheck(x+1,y+1) {
				paper[x+1][y+1]++
			}
			if rangeCheck(x,y-2) {
				paper[x][y-2]++
			}
			if rangeCheck(x-2,y) {
				paper[x-2][y]++
			}
			if rangeCheck(x+2,y) {
				paper[x+2][y]++
			}
			if rangeCheck(x,y+2) {
				paper[x][y+2]++
			}
			continue
		}
	}
	count := 0
	max := -1
	for i := range paper {
		for j := range paper[i] {
			if paper[i][j] == 0 {
				count++
			}
			if max >= paper[i][j] {
				max = max
			} else {
				max = paper[i][j]
			}
		}
	}
	fmt.Printf("%d\n%d\n", count, max)
}

C++: #include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <algorithm>
#include <cstdlib>
#include <ctime>
#include <cstdio>
#include <functional>
#include <complex>
using namespace std;
int main() {
	int paper[14][14] = { 0 };
	int fl, x, y;
	char split;
	while (cin >> y>> split >> x >> split >> fl) {
		if (fl == 2) {
			for (int i = 0;i < 3;i++) {
				for (int j = 0;j < 3;j++) {
					paper[x + 1 + i][y + 1 + j] += 1;
				}
			}
		}
		if (fl == 1) {
			paper[x + 2][y + 2] += 1;
			paper[x + 1][y + 2] += 1;
			paper[x + 2][y + 1] += 1;
			paper[x + 3][y + 1] += 1;
			paper[x + 1][y + 3] += 1;
		}
		if (fl == 3) {
			for (int i = 0;i < 3;i++) {
				for (int j = 0;j < 3;j++) {
					paper[x + 1 + i][y + 1 + j] += 1;
				}
			}
				paper[x][y + 2] += 1;
				paper[x + 4][y + 2] += 1;
				paper[x + 2][y + 4] += 1;
				paper[x + 2][y] += 1;
			
		}
		int count = 0;
		int ans = 0;
		for (int i = 2;i < 12;i++) {
			for (int j = 2;j < 12;j++) {
				if (paper[i][j] == 0) count += 1;
				ans = max(ans, paper[i][j]);
			}
		}
		cout << count << endl;
		cout << ans << endl;
	}
}

C++: #include <iostream>
#include <vector>
#include <map>

class DrawAreaStrategy
{
public:
	DrawAreaStrategy(){}
	virtual ~DrawAreaStrategy(){}

	DrawAreaStrategy(const DrawAreaStrategy&) = delete;
	DrawAreaStrategy& operator=(const DrawAreaStrategy&) = delete;

	DrawAreaStrategy(DrawAreaStrategy&&) = delete;
	DrawAreaStrategy& operator=(DrawAreaStrategy&&) = delete;

	virtual void Draw(std::vector<std::vector<int>>& draw_sheet, int x, int y) = 0;
};

class DrawAreaSmallStrategy
{
public:
	DrawAreaSmallStrategy() {}
	virtual ~DrawAreaSmallStrategy() {}

	DrawAreaSmallStrategy(const DrawAreaSmallStrategy&) = delete;
	DrawAreaSmallStrategy& operator=(const DrawAreaSmallStrategy&) = delete;

	DrawAreaSmallStrategy(DrawAreaSmallStrategy&&) = delete;
	DrawAreaSmallStrategy& operator=(DrawAreaSmallStrategy&&) = delete;

	virtual void Draw(std::vector<std::vector<int>>& draw_sheet, int x, int y)
	{
		static const std::vector<std::pair<int, int>> draw_list
		{
			{ 0,  0 },

			{ -1,  0 },
			{  1,  0 },
			{  0, -1 },
			{  0,  1 }
		};
		for (auto draw_point : draw_list)
		{
			draw_sheet[x + draw_point.first][y + draw_point.second]++;
		}
	}
};


class DrawAreaMiddleStrategy
{
public:
	DrawAreaMiddleStrategy() {}
	virtual ~DrawAreaMiddleStrategy() {}

	DrawAreaMiddleStrategy(const DrawAreaMiddleStrategy&) = delete;
	DrawAreaMiddleStrategy& operator=(const DrawAreaMiddleStrategy&) = delete;

	DrawAreaMiddleStrategy(DrawAreaMiddleStrategy&&) = delete;
	DrawAreaMiddleStrategy& operator=(DrawAreaMiddleStrategy&&) = delete;

	virtual void Draw(std::vector<std::vector<int>>& draw_sheet, int x, int y)
	{
		static const std::vector<std::pair<int, int>> draw_list
		{
			{ 0,  0 },

			{ -1,  0 },
			{ 1,  0 },
			{ 0, -1 },
			{ 0,  1 },

			{ -1, -1 },
			{ -1,  1 },
			{  1, -1 },
			{  1,  1 }
		};
		for (auto draw_point : draw_list)
		{
			draw_sheet[x + draw_point.first][y + draw_point.second]++;
		}
	}
};

class DrawAreaLargeStrategy
{
public:
	DrawAreaLargeStrategy() {}
	virtual ~DrawAreaLargeStrategy() {}

	DrawAreaLargeStrategy(const DrawAreaLargeStrategy&) = delete;
	DrawAreaLargeStrategy& operator=(const DrawAreaLargeStrategy&) = delete;

	DrawAreaLargeStrategy(DrawAreaLargeStrategy&&) = delete;
	DrawAreaLargeStrategy& operator=(DrawAreaLargeStrategy&&) = delete;

	virtual void Draw(std::vector<std::vector<int>>& draw_sheet, int x, int y)
	{
		static const std::vector<std::pair<int, int>> draw_list
		{
			{  0,  0 },

			{ -1,  0 },
			{  1,  0 },
			{  0, -1 },
			{  0,  1 },

			{ -1, -1 },
			{ -1,  1 },
			{  1, -1 },
			{  1,  1 },

			{ -2,  0 },
			{  2,  0 },
			{  0, -2 },
			{  0,  2 }
		};
		for (auto draw_point : draw_list)
		{
			draw_sheet[x + draw_point.first][y + draw_point.second]++;
		}
	}
};

int main()
{
	DrawAreaSmallStrategy small;
	DrawAreaMiddleStrategy middle;
	DrawAreaLargeStrategy large;

	std::vector< std::vector<int> > sheet(10, std::vector<int>(10));

	int x = 0, y = 0, s = 0;
	char a = 0;
	while (std::cin >> x >> a >> y >> a >> s)
	{
		//switch (s)
		//{
		//case 1:
		//{
		//	small.Draw(sheet, x, y);
		//	break;
		//}
		//case 2:
		//{
		//	middle.Draw(sheet, x, y);
		//	break;
		//}
		//case 3:
		//{
		//	large.Draw(sheet, x, y);
		//	break;
		//}
		//default:
		//	break;
		//}
	}

	int empty_num = 0;
	int max_num = 0;

	for (auto line : sheet)
	{
		for (auto cell : line)
		{
			if (0 == cell)
			{
				empty_num++;
				continue;
			}
			if (max_num < cell)
			{
				max_num = cell;
			}
		}
	}
	std::cout << empty_num << "\n" << max_num << std::endl;

	return 0;
}