diff --git a/du4/program.c b/du4/program.c
index 5e34b72..7d45190 100644
--- a/du4/program.c
+++ b/du4/program.c
@@ -4,7 +4,7 @@
 
 #define SIZE 100
 
-struct student {
+struct student{
     char name[SIZE];
     int votes;
 };
@@ -20,6 +20,7 @@ int find_student(const char* name){
     }
     return -1;
 }
+
 int compare(const void* a, const void* b) {
     struct student* s1 = (struct student*)a;
     struct student* s2 = (struct student*)b;
@@ -36,18 +37,30 @@ int compare(const void* a, const void* b) {
 int main() {
     char line[SIZE];
     memset(databaza, 0, sizeof(databaza));
+
     while (fgets(line, SIZE, stdin)) {
         char* end = NULL;
         int votes = strtol(line, &end, 10);
-        continue;
+        if (votes == 0 && end == line) {
+            printf("Chyba: Neplatny format vstupu!\n");
+            continue;
+        }
+        while (*end == ' ') {
+            end++;
+        }
+        if (*end == '\0' || *end == '\n') {
+            printf("Chyba: Neplatny format - chyba meno!\n");
+            continue;
         }
 
         char name[SIZE];
         memset(name, 0, SIZE);
-        strncpy(name, end + 1, strlen(end + 1) - 1);
+        strncpy(name, end, SIZE - 1);
+        name[strcspn(name, "\n")] = '\0';
+
         int id = find_student(name);
-        if (id < 0){
-            if (size >= SIZE){
+        if (id < 0) {
+            if (size >= SIZE) {
                 printf("Chyba: Databaza je plna!\n");
                 continue;
             }
@@ -55,14 +68,12 @@ int main() {
             strncpy(databaza[size].name, name, SIZE - 1);
             databaza[size].votes = votes;
             size++;
-        }
-        else
-        {
+        } else {
             databaza[id].votes += votes;
         }
     }
 
-    if (size == 0){
+    if (size == 0) {
         printf("Chyba: Nebol nacitany ziadny platny zaznam!\n");
         return 1;
     }
@@ -75,3 +86,4 @@ int main() {
     }
     return 0;
 }
+