diff --git a/cv8/program.c b/cv8/program.c
index e64c482..e69ebff 100644
--- a/cv8/program.c
+++ b/cv8/program.c
@@ -4,16 +4,16 @@
 #include <assert.h>
 
 struct tree {
-    char value[20];
+    char value[30];
     struct tree* left;
     struct tree* right;
 };
 
 
 struct tree* read_tree(){
-    char buffer[20];
-    memset(buffer,0,20);
-    char* r = fgets(buffer,20,stdin);
+    char buffer[30];
+    memset(buffer,0,30);
+    char* r = fgets(buffer,30,stdin);
     int x = strlen(buffer);
     buffer[x-1]='\0'; 
     
@@ -23,7 +23,7 @@ struct tree* read_tree(){
     if(buffer[0] == '\0'){
         return node;
     }
-    memcpy(node->value, buffer, 20);
+    memcpy(node->value, buffer,30);
     if(buffer[0] != '*'){ 
         if(node->left == NULL){
             node->left = read_tree();