diff --git a/du6/program.c b/du6/program.c
index 40582ea..64676e1 100644
--- a/du6/program.c
+++ b/du6/program.c
@@ -5,30 +5,35 @@
 
 int main() {
 
-   char database[200][30];
+   char base[200][30];
    char string[30];
-   int error = 0;
-   int count = 0;
-   int i = 0;
+   int stop = 0;
+   int counter = 0;
+   int a = 0;
    
-   memset(database, 0, sizeof(database));
+   memset(base, 0, sizeof(base));
    memset(string, 0, 30);
+  
    char *r;
    r = fgets(string, 1000, stdin);
    if (r == NULL)
       return 0;
-   sscanf(string, "%d", &count);
-   if(strlen(r) == 1 || count < 1) {
+   
+   sscanf(string, "%d", &counter);
+  
+   if(strlen(r) == 1 || counter < 1) {
       puts("Nespravny vstup");
       return 0;
    }
-   for (int c = 0; c < 30; c++) {
-      if (isalpha(r[c])) {
-         error = 1;
+  
+   for (int b = 0; b < 30; b++) {
+      if (isalpha(r[b])) {
+         stop = 1;
          break;
       }
    }
-   if (error != 0) {
+   
+   if (stop != 0) {
       puts("Nespravny vstup");
       return 0;
    }
@@ -39,43 +44,47 @@ int main() {
       r = fgets(string, 30, stdin);
       if (r == NULL)
          break;
-      error = 0;
-      for (int j = 0; j < 200; j++) {
+      stop = 0;
+      for (int c = 0; c < 200; c++) {
 
-         if (strcmp(database[j], string) == 0) {
-            error = 1;
+         if (strcmp(base[c], string) == 0) {
+            stop = 1;
             break;
          }
 
       }
 
-      if (error == 0 && strlen(r) > 1) {
-         strcpy(database[i], r);
-         i++;
+      if (stop == 0 && strlen(r) > 1) {
+         strcpy(base[a], r);
+         a++;
       }
 
    }
-   if (i == 0) {
+  
+   if (a == 0) {
    	puts("Ziadne prihlasky");
 	return 0;
    }
-   for (int j = 0; j < i; j++) {
-      for (int k = 0; k < i; k++) {
-         if (strcmp(database[j], database[k]) < 0) {
+   
+   for (int d = 0; d < a; d++) {
+      for (int f = 0; f < a; f++) {
+         if (strcmp(base[d], base[f]) < 0) {
             char buffer[30];
-            //memset(buffer, 0, sizeof(buffer));
-            strcpy(buffer, database[j]);
-            strcpy(database[j], database[k]);
-            strcpy(database[k], buffer);
+            
+            strcpy(buffer, base[d]);
+            strcpy(base[d], base[f]);
+            strcpy(base[f], buffer);
          }
       }
    }
+  
    puts("Prijati studenti:");
+   
    for (int j = 0; j < i; j++) {
-      if (j == count) {
+      if (j == counter) {
          puts("Neprijati studenti:");
       }
-      printf("%s", database[j]);
+      printf("%s", base[j]);
    }
    return 0;
 }
\ No newline at end of file