Fixed echo to actually print unsigned as well.

myecho.c

@@ -10,7 +10,7 @@ int main() {
 
     while ((total = fread(array, sizeof number, size, stdin))){
         for (int i = 0; i < total; i++){
-            printf("%i\n", array[i]);
+            printf("%u\n", array[i]);
         }
     }
 }