diff --git a/sheet01/a2/b-sha2.txt b/sheet01/a2/b-sha2.txt
index 1a02e2d..d98fd07 100644
Binary files a/sheet01/a2/b-sha2.txt and b/sheet01/a2/b-sha2.txt differ
diff --git a/sheet01/a2/b-sha3.txt b/sheet01/a2/b-sha3.txt
index e69de29..836e93e 100644
--- a/sheet01/a2/b-sha3.txt
+++ b/sheet01/a2/b-sha3.txt
@@ -0,0 +1 @@
+SHA3-256 (plaintext.txt) = 8cdcfd9d0414adbba1bb146c214e181d7e5d7c8edde90b79dcb27df005fcc298
diff --git a/sheet01/a2/b.txt b/sheet01/a2/b.txt
index 5b2c124..e2c1575 100644
--- a/sheet01/a2/b.txt
+++ b/sheet01/a2/b.txt
@@ -1,2 +1,4 @@
-plaintext.txt -Algorithm SHA256
-reads the plaintext file and calculates a unique hash string using the SHA-256 cryptographic algorithm.
\ No newline at end of file
+cksum -a sha2 --length 256 plaintext.txt > b-sha2.txt
+reads the plaintext file and calculates a unique hash string using the SHA2-256 cryptographic algorithm and writes it into b-sha2.txt
+cksum -a sha3 --length 256 plaintext.txt > b-sha3.txt
+reads the plaintext file and calculates a unique hash string using the SHA3-256 cryptographic algorithm and writes it into b-sha3.txt
\ No newline at end of file