diff --git a/BM1D.cc b/BM1D.cc
index fc65d04..2eae252 100644
--- a/BM1D.cc
+++ b/BM1D.cc
@@ -23,7 +23,7 @@ void OpenRootFile()
 
 int main(int argc, char* argv[])
 {
-	Int_t n = 1000;
+	Int_t n = 1000, p0 = 1, start = 0;
 	
 	TApplication App("tapp", &argc, argv);
 	TCanvas* Canv = new TCanvas("c10","Live display",800,400);
@@ -35,8 +35,8 @@ int main(int argc, char* argv[])
 	else
 	{
 		
-		Progress* Pr1 = new Progress(n);
-		Progress* Pr2 = new Progress(n);
+		Progress* Pr1 = new Progress(n,p0,start);
+		Progress* Pr2 = new Progress(n,p0,start);
 		
 		Pr1->Count('u');
 		Pr2->Count('g');
diff --git a/README.md b/README.md
index aed0666..9296e62 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Brownian movement in one dimension. Starter pack for data processing course from
 * **Balázs Ujvári** - *University of Debrecen* - [E-mail](mailto:balazs.ujvari@science.unideb.hu)
 * **Dávid Baranyai** - *University of Debrecen* - [E-mail](mailto:divaldo95@gmail.com)
 
-## Requirements
+### Requirements
 
 * Linux (Tested on Ubuntu 16.04 LTS)
 * CERN ROOT (Tested on v6.10/08)
@@ -51,6 +51,8 @@ If there's command line argument, then program opens the created root file. Name
 
 ## Updates
 
+* 2017/10/29 - 'v1.3.1' - Release Candidate
+
 * 2017/10/29 - 'v1.3' - Minor fixes in Progress
 
 * 2017/10/29 - 'v1.2' - Creation of reloaded version and it's repository
diff --git a/include/Progress.hh b/include/Progress.hh
index 8c8366f..2762ef5 100644
--- a/include/Progress.hh
+++ b/include/Progress.hh
@@ -32,7 +32,7 @@ public:
  
  Double_t GetP0();
  Int_t GetSteps();
- Double_t GetNext();
+ Double_t GetNext(char a);
  Double_t GetPrevious();
  
  void SetP0(double p0_new);
diff --git a/src/Progress.cc b/src/Progress.cc
index 110d818..9f6fa55 100644
--- a/src/Progress.cc
+++ b/src/Progress.cc
@@ -31,46 +31,32 @@ void Progress::Count(char a)
     {
         if(i==0)
         {
-            x.push_back(0.0);
+            x.push_back(p0);
             y.push_back(0.0);
         }
-
-        y.push_back((Double_t)i);
         
-        switch(a)
-        {
+        x.push_back(GetNext(a));
+		y.push_back(steps);
+    }
+}
+
+Double_t Progress::GetNext(char a)
+{
+		switch(a){
 			case 'u':
-			if(random1->Uniform()>=0.5)
-			{
-            x.push_back(x[i-1]-0.1);
-			}
-			else
-			{
-            x.push_back(x[i-1]+0.1);
-			}
+			preVstate+=random1->Uniform(-p0,p0);
 			break;
 			
 			case 'g':
-			if(random1->Gaus()>=0.5)
-			{
-            x.push_back(x[i-1]-0.1);
-			}
-			else
-			{
-            x.push_back(x[i-1]+0.1);
-			}
+			preVstate+=random1->Gaus(-p0,p0);
 			break;
 			
 			default:
 			std::cout<<"Invalid argument!"<<std::endl;
+			preVstate+=0.0;
 			break;
 		}
-    }
-}
-
-Double_t Progress::GetNext()
-{
-        preVstate+=fmod(random1->Uniform(),(2*p0)-p0);
+        
         steps++;
         return preVstate;
 }