=== 압축1 ===
{{{~cpp 
#include<fstream>
#include<iostream>
#include<string>
using namespace std;

void main()
{
	ifstream fin("input.txt");
	ofstream fout("output.txt");
	char temp = NULL;
	int number = 0;
	string pass;
	fin >> pass;
	for(int i = 0;pass[i];i++)
	{
		if(pass[i] != temp)
		{
			if(i!=0)
				fout << number << temp;
			temp = pass[i];
			number = 1;
		}
		else
		{
			number ++;
		}
	}
	fout << number << temp;
}
}}}
=== 압축2 ===
{{{~cpp 
#include<fstream>  
#include<iostream>  
#include<string>
using namespace std;  
  
void main()  
{  
    ifstream fin("input.txt");  
    ofstream fout("output.txt");  
    char temp = NULL;
	int number;
    string pass;  
    fin >> pass;  
    for(int i = 0;pass[i];i++)  
    {  
                if(i==0)  
                        temp = pass[i];  
                else 
                {
					pass[i] = (temp-pass[i])+48;
					if(pass[i] < 48 )
					{
						number = pass[i] - 48;
						fout << number;
						continue;
					}
				}
                fout << pass[i];  
    }  
         
}
}}} 
=== 해제1 ===
{{{~cpp 
#include<fstream>
#include<iostream>
#include<string>
using namespace std;

void main()
{
	ifstream fin("output.txt");
	ofstream fout("input.txt");
	int decimal;
	int num;
	char pass[20];
	fin >> pass;
	int length = strlen(pass);
	for(int i = (length-1); i < 0; i--)	
	{
		if(isalpha(pass[i]))
		{
			decimal = 1;
			num = (pass[i] - 48) * decimal;
			decimal *= 10; 
		else
			dacimal 
		

	
}
}}}
=== 해제2 ===
{{{~cpp 
#include<fstream>  
#include<iostream>  
#include<string>  
using namespace std;  
  
void main()  
{  
    ifstream fin("output.txt");  
    ofstream fout("input.txt");  
    char temp = NULL;   
    string pass;  
    fin >> pass;  
    for(int i = 0;pass[i];i++)  
    {  
                if(i==0)  
                        temp = pass[i];  
                else 
				{
					if(pass[i] == 45)
					{
						i++;
						pass[i] = temp+(pass[i]-48);
					}
					else
						pass[i] = temp-(pass[i]-48);
				}
                fout << pass[i];  
    }  
         
} 
}}}