diff --git a/du6/program.c b/du6/program.c
index 378936d..9a42962 100644
--- a/du6/program.c
+++ b/du6/program.c
@@ -2,6 +2,7 @@
 #include <string.h>
 
 int main(){
+    //Read num of lines
     int tmpCh;
     tmpCh = getc(stdin);
     if(tmpCh < '1' || tmpCh > '9'){
@@ -14,6 +15,7 @@ int main(){
     scanf("%d", &lines);
     scanf("%*c");
 
+    //Read names
     int realLines = 0;
     char names[200][200];
     for(int i = 0; i < 200; i++){
@@ -30,9 +32,9 @@ int main(){
         if(tmpCh == EOF) break;
     }
 
+    //Filter names
     char newNames[200][200];
     int newLines = 0;
-
     for(int i = 0; i < realLines; i++){
         int check = 1;
         for(int q = 0; q < newLines; q++){
@@ -47,11 +49,12 @@ int main(){
         }
     }
     
+    //Sort names
     for(int d = 0; d < newLines - 1; d++){
         for(int i = 0; i < newLines - 1; i++){
             int test = 0;
             for(int q = 0; q < newLines; q++){
-                if(newNames[i][q] > newNames[i + 1][q]){
+                if(newNames[i][q] > newNames[i + 1][q] || newNames[i][q] == -59){
                     char tmpName[50];
                     strcpy(tmpName, newNames[i]);
                     strcpy(newNames[i], newNames[i + 1]);
@@ -65,6 +68,7 @@ int main(){
         }
     }
 
+    //Print names
     if(newLines <= lines){
         puts("Prijati studenti:");
         for(int i = 0; i < newLines; i++){