diff --git a/lab3/zad1/include/DHSetup.hpp b/lab3/zad1/include/DHSetup.hpp
index 2c08c54..d31f437 100644
--- a/lab3/zad1/include/DHSetup.hpp
+++ b/lab3/zad1/include/DHSetup.hpp
@@ -59,7 +59,7 @@ public:
     }
 
     T power(T a, uint64_t b) {
-        T res = a;
+        T res = 1;
         while (b > 0) {
             if (b % 2 == 1) {
                 res *= a;
diff --git a/lab3/zad2/app/src/main/java/pl/jacekpoz/DHSetup.java b/lab3/zad2/app/src/main/java/pl/jacekpoz/DHSetup.java
index a65497f..1074d1c 100644
--- a/lab3/zad2/app/src/main/java/pl/jacekpoz/DHSetup.java
+++ b/lab3/zad2/app/src/main/java/pl/jacekpoz/DHSetup.java
@@ -74,7 +74,7 @@ public class DHSetup<T extends IGF> implements IDHSetup<T> {
     @Override
     public T power(final T a, long b) {
         T aCopy = this.constructor.apply(new GF.Params(a.getCharacteristic(), a.getValue()));
-        T res = this.constructor.apply(new GF.Params(a.getCharacteristic(), a.getValue()));
+        T res = this.constructor.apply(new GF.Params(a.getCharacteristic(), 1));
         while (b > 0) {
             if (b % 2 == 1) {
                 res.multiplyAssign(aCopy);