diff --git a/RandomWriter/RandomWriter.pro b/RandomWriter/RandomWriter.pro
index 85bdbce..4570e8d 100644
--- a/RandomWriter/RandomWriter.pro
+++ b/RandomWriter/RandomWriter.pro
@@ -110,7 +110,7 @@ win32 {
     QMAKE_LFLAGS += -Wl,--stack,536870912
     LIBS += -lDbghelp
     LIBS += -lbfd
-    LIBS += -liberty
+#    LIBS += -liberty
     LIBS += -limagehlp
 }
 macx {
diff --git a/RandomWriter/src/RandomWriter.cpp b/RandomWriter/src/RandomWriter.cpp
index e591dac..75d6b87 100644
--- a/RandomWriter/src/RandomWriter.cpp
+++ b/RandomWriter/src/RandomWriter.cpp
@@ -6,9 +6,152 @@
 #include "random.h"
 #include "strlib.h"
 #include "vector.h"
+#include "filelib.h"
+#include "simpio.h"
+#include "tokenscanner.h"
 using namespace std;
 
+
+/*
+The Function is to get the user level model in the form of an integer from 1 -10
+param modelLevel - the variable which will contain modelLevel
+*/
+void getModelLevel(int &modelLevel){
+    while(true){
+        modelLevel = getInteger("Enter model level from 1-10: ");
+        if (modelLevel < 1 || modelLevel >10){
+            cout<<"You enter the wrong model level!"<<endl;
+        } else break;
+    }
+
+}
+
+/*
+Function reads the first seed from the file according to the received level model.
+param scanner - token scanner for reading characters
+param modelLevel - the variable which will contain modelLevel
+param seedKey - key first seed to build Map
+param nextChar - the next character after seed
+*/
+void readFirstSeed(TokenScanner &scanner,int &modelLevel,string &seedKey,char &nextChar){
+
+        for(int i = 0; i < modelLevel; i++){
+            nextChar = scanner.getChar();
+            if(nextChar == EOF )break;
+            seedKey += nextChar;
+        }
+}
+
+/*Function moves seed by one character
+param param seedKey - key first seed to build Map
+param nextChar - the next character after seed
+param modelLevel - the variable which will contain modelLevel
+*/
+void readNextSeeds(string &seedKey, char &nextChar,int &modelLevel){
+
+    if(seedKey != ""){
+        seedKey = seedKey.substr(1);
+        seedKey += nextChar;
+    }
+ }
+
+
+/*
+ The Function reads the file one character and fills out the Map according to the Markov model
+ param seedMap - map in which seed are the keys and values are vectors of characters which may be present after seed
+ param fileForAnalize - which may be present after the oxide
+ param modelLevel - the variable which will contain modelLevel
+
+*/
+void readFileToBuildSeedsMap(Map<string, Vector<char>> &seedMap, ifstream &fileForAnalize, int &modelLevel){
+    string seedKey;
+    char nextChar;
+
+    TokenScanner scanner(fileForAnalize);
+
+    readFirstSeed(scanner,modelLevel,seedKey,nextChar);
+    while(true){
+        readNextSeeds(seedKey,nextChar,modelLevel);
+        nextChar = scanner.getChar();
+        if(nextChar == EOF){
+            break;
+        }
+        /*At each iteration adding to the map characters which is the current Sid*/
+        seedMap[seedKey].add(nextChar);
+    }
+    fileForAnalize.close();
+
+}
+
+
+/*The Function of analyzing the map, and choose seed with the highest number of possible characters
+ param seedMap - map in which seed are the keys and values are vectors of characters which may be present after seed
+ return seedKey return found the most popular seed
+*/
+string findMostPopularSeed(Map<string, Vector<char>> &seedMap){
+    Vector<string> seedKeyCopy = seedMap.keys();
+    string result = seedKeyCopy[0];
+    for (string key: seedMap){
+        if (seedMap[key].size() > seedMap[result].size()){
+            result = key;
+        }
+    }
+    return result;
+}
+
+/*
+ Function randomly selects the next character of the possible from prepared seed
+ param seedMap - map in which seed are the keys and values are vectors of characters which may be present after seed
+ param startSeed - the most popular seed
+ param modelLevel - the variable which will contain modelLevel
+ return character the most popular character from prepared seed
+*/
+char getNextChar(Map<string, Vector<char>> &seedMap,string &startSeed, int &modelLevel){
+    char result;
+    Vector<char> nextChar = seedMap[startSeed];
+    result = nextChar[randomInteger(0, nextChar.size()-1)];
+    readNextSeeds(startSeed,result,modelLevel);
+    return result;
+}
+
+/*
+ Function generates a random text length of 2000 characters from the collected data in the map by Markov model
+ param seedMap - map in which seed are the keys and values are vectors of characters which may be present after seed
+*/
+void printRandomText(Map<string, Vector<char>> &seedMap,int &modelLevel){
+    const int MAX_TEXT_SIZE = 2000;
+    string resultText = "";
+    string startSeed = findMostPopularSeed(seedMap);
+
+    resultText += startSeed;
+    while (true) {
+
+        if (resultText.length() > MAX_TEXT_SIZE) break;
+
+        resultText += getNextChar(seedMap, startSeed,modelLevel);
+    }
+
+    cout<<resultText<<endl;
+}
+
+
 int main() {
-    // TODO: fill in the code
-	return 0;
+    ifstream fileForAnalize;
+    int modelLevel;
+    Map<string, Vector<char>> seedMap;
+
+    while (true) {
+        promptUserForFile(fileForAnalize, "Please enter the your file name: ");
+        if (fileForAnalize.is_open()){
+        break;
+        }
+    }
+
+    getModelLevel(modelLevel);
+
+    readFileToBuildSeedsMap(seedMap,fileForAnalize,modelLevel);
+
+    printRandomText(seedMap,modelLevel);
+
+    return 0;
 }
diff --git a/WordLadder/WordLadder.pro b/WordLadder/WordLadder.pro
index 85bdbce..4570e8d 100644
--- a/WordLadder/WordLadder.pro
+++ b/WordLadder/WordLadder.pro
@@ -110,7 +110,7 @@ win32 {
     QMAKE_LFLAGS += -Wl,--stack,536870912
     LIBS += -lDbghelp
     LIBS += -lbfd
-    LIBS += -liberty
+#    LIBS += -liberty
     LIBS += -limagehlp
 }
 macx {
diff --git a/WordLadder/src/WordLadder.cpp b/WordLadder/src/WordLadder.cpp
index 01d35d7..f92b1df 100644
--- a/WordLadder/src/WordLadder.cpp
+++ b/WordLadder/src/WordLadder.cpp
@@ -6,7 +6,111 @@
 #include "vector.h"
 using namespace std;
 
+
+/*
+Function selects all the possible words that are different from the input one character.
+param - startWord word to start the search
+param allValidWord - a list of all the words
+param usedWords - list has previously used the words
+return vector all found words
+*/
+Vector<string> findSimilarWord(string startWord, Lexicon &allValidWord, Lexicon &usedWords){
+    Vector<string> result;
+    if(!usedWords.contains(startWord))
+        usedWords.add(startWord);
+
+    for (int i = 0; i < startWord.length(); i++){
+        string wordCopy = startWord;
+        for (char c = 'a'; c <= 'z'; c++){
+            wordCopy.replace(i,1,1,c);
+            if (allValidWord.contains(wordCopy) & !usedWords.contains(wordCopy)) {
+                result.add(wordCopy);
+                usedWords.add(wordCopy);
+            }
+        }
+    }
+
+    return result;
+}
+
+
+/*
+ method adds the word to the queue
+ param word - the word to be added
+ validLadders - queue all valid ladders
+*/
+void addWordToQueue (string word, Queue<Vector<string>> &validLadders){
+    Vector<string> shortestLadder(1, word);
+    validLadders.enqueue(shortestLadder);
+}
+
+
+/*
+Function displays the shortest ladder
+param  shortestLadder - a vector that contains the shortest ladder
+*/
+void printResultLadder(Vector<string> &shortestLadder){
+    for (int i = 0; i < shortestLadder.size(); i++){
+        if ( i != shortestLadder.size()-1 ){
+            cout<<shortestLadder[i]<<"->";
+        } else{
+            cout<<shortestLadder[i]<<endl;
+        }
+
+    }
+
+}
+
+
+/*
+Function finds the shortest ladder for two words
+param startWord - word to start the search
+param destWord - the word which should be built ladder
+*/
+void findeWordLaddes(string startWord, string destWord){
+    Lexicon allValidWord("EnglishWords.txt");
+    Lexicon usedWords;
+    Queue<Vector<string>> validLadders;
+    addWordToQueue(startWord, validLadders);
+    bool result = false;
+
+    while (!validLadders.isEmpty()) {
+        Vector<string> shortestLadder = validLadders.dequeue();
+        // If the last word of the vector is equal to destWord way to stop searching
+        if (shortestLadder[shortestLadder.size() -1] == destWord) {
+            printResultLadder(shortestLadder);
+            result = true;
+            break;
+        }
+        //displace a search on the last word on the ladder
+        string lastLadderWord = shortestLadder[shortestLadder.size() -1];
+
+        Vector<string> allSimilarWords = findSimilarWord(lastLadderWord, allValidWord, usedWords);
+
+        for(int i=0; i < allSimilarWords.size(); i++){
+            Vector<string> copyShortestLadder = shortestLadder;
+            copyShortestLadder.add(allSimilarWords[i]);
+            validLadders.enqueue(copyShortestLadder);
+        }
+        //If the ladder is not built stop and display a message
+        if (shortestLadder.size() == 0) break;
+
+    }
+    if (!result) cout<<"Any ladders could not be found"<<endl;
+
+}
+
+
 int main() {
-    // TODO: fill in the code
-	return 0;
+    while (true) {
+        string startWord = getLine("Enter start word: ");
+        string destWord = getLine("Enter destination word: ");
+
+        if ((startWord.length() ==0) || (destWord.length() == 0)){
+            cout<<"Enter incorrect word!"<<endl;
+            continue;
+        } else findeWordLaddes(startWord, destWord);
+
+    }
+    return 0;
 }