import java.util.*;

public class Main
{
	public static void main(String[] args) {
		System.out.println("Hello World");
		zad3();
		zad2();
		zad1();
	}
	public static void zad3()
	{
	    int C = 0;
	    int alfa = 0;
	    int repeatedLetter = 2;
	    char tmpCh = ' ';
	    Scanner in = new Scanner(System.in);
	    while(C<1 || C>50)
	    {
	        System.out.print("Podaj C z przedziału <1;50>: ");
	        C = in.nextInt();
	    }
	    C++;
	    String[] text = new String[C];
	    String[] newText = new String[C];
	    for (int iC=0; iC<C; iC++) 
	    {
	        text[iC] = in.nextLine();
	        newText[iC] = "";
	    }
	    for (int iC=1; iC<C; iC++)
	    {
	        tmpCh=text[iC].charAt(0);
	        text[iC] += " ";
	        for (int i=0; i<text[iC].length(); i++)
	        {
	            if(tmpCh!=text[iC].charAt(i))
	            {
	                if(alfa>repeatedLetter)
	                {
	                    newText[iC]+=tmpCh+Integer.toString(alfa);
	                }
	                else
	                {
	                    for (int j=0; j<alfa; j++)
	                    {
	                        newText[iC]+=tmpCh;
	                    }
	                }
	                tmpCh=text[iC].charAt(i);
	                alfa=1;
	            }
	            else
	            {
	                alfa++;
	            }
	        }
	    }
	    for (int iC=1; iC<C; iC++)
	    {
	        if(newText[iC]!=null)
	        {
	            System.out.println(newText[iC]);
	        }
	    }
	    
	}
	public static void zad2()
	{
	    String text = "ABC DEF\nTERA EST ROTUNDAZ\nABCDEFGHIJKLMNOPQRSTUWXYZ";
	    String newText = "";
	    int nextL = 3;
	    char[] chTab = new char[text.length()];
	    for (int i=0; i<text.length(); i++)
	    {
	        chTab[i] = text.charAt(i);
	    }
	    for(int i=0; i<text.length(); i++)
	    {
	        if((int)chTab[i]>=65 && (int)chTab[i]<=90)
	        {
	            if(((int)chTab[i]+nextL>90))
	            {
	                chTab[i] = (char)(((int)chTab[i]+nextL)-(26+nextL));
	            }
	            if(((int)chTab[i]+nextL<65))
	            {
	                chTab[i] = (char)(((int)chTab[i]+nextL)+(26+(-1*nextL)));
	            }
	            chTab[i] = (char)((int)chTab[i]+nextL);
	            newText += chTab[i];
	        }
	        else
	        {
	            newText += chTab[i];
	        }
	    }
	    System.out.println(newText);
	    
	}
	public static void zad1()
	{
	    int t = 0;
	    Scanner in = new Scanner(System.in);
	    while(t<1 || t>1000)
	    {
	        System.out.print("Podaj t z przedziału <1;1000>: ");
	        t = in.nextInt();
	    }
	    t++;
	    String[] text = new String[t];
	    for (int i=0; i<t; i++ ) 
	    {
	        text[i] = in.nextLine();
	    }
	    for (int i=0; i<t; i++ ) 
	    {
	        for (int j=0; j<text[i].length()/2; j++) 
	        {
	            System.out.print(text[i].charAt(j));
	        }
	        System.out.print("\n");
	    }
	   
	}
}