diff --git a/du6/program.c b/du6/program.c
index 879f989..4827027 100644
--- a/du6/program.c
+++ b/du6/program.c
@@ -22,7 +22,16 @@ void destroy_tree(struct tree* tree){
     }
     free(tree);
 }
+bool find_the_incorrect(struct tree* tree){
+    if(tree == NULL){
+        return false;
+    }
 
+    if(strcspn( tree->value, "*") != strlen(tree->value) || strcspn(tree->value, "?") != strlen(tree->value)){
+        return true;}
+        return  find_the_incorrect(tree->right) || find_the_incorrect(tree->left);
+
+}
 struct tree* read_tree(){
     char buffer[SIZE];
     memset(buffer,0,SIZE);
@@ -69,9 +78,11 @@ int count_leaves(struct tree* tree){
 
 int main(void){
     bool whitespace = false;
-
     struct tree* tree = read_tree();
+    bool found = find_the_incorrect(tree);
+      print_tree(tree, 0);
     char line[SIZE];
+    char line2[SIZE];
     
     int numOfLeaves = count_leaves(tree);
     char answer[SIZE];
@@ -82,8 +93,9 @@ int main(void){
         break; 
     }
 }
+
     printf("Expert z bufetu to vie.\n");
-    if(!tree || !whitespace){
+    if(!tree || !whitespace || found){
         printf("Chybna databaza\n");
         return 0;
     }
@@ -124,4 +136,5 @@ int main(void){
     }
     }
     destroy_tree(tree);
-return 0;}
\ No newline at end of file
+return 0;}
+