diff --git a/code/kasiski.py b/code/kasiski.py
new file mode 100644
index 0000000..7eca817
--- /dev/null
+++ b/code/kasiski.py
@@ -0,0 +1,14 @@
+ciphertext = "PPKAMJELQHPIAHLWYPKDDNBGPMJELQHPIAHZWUYJH"
+
+blocks = ["", "", ""]
+output = ""
+for i in range(len(ciphertext)):
+    if i % 3 == 0:
+        output += "\\textcolor{red}{" + ciphertext[i] + "}"
+    elif i % 3 == 1:
+        output += "\\textcolor{blue}{" + ciphertext[i] + "}"
+    elif i % 3 == 2:
+        output += "\\textcolor{darkgreen}{" + ciphertext[i] + "}"
+    blocks[i%3] += ciphertext[i]
+print(output)
+print(blocks)