diff --git a/algorithms/rol6_add_sub20.py b/algorithms/rol6_add_sub20.py
new file mode 100644
index 0000000..ab01dc9
--- /dev/null
+++ b/algorithms/rol6_add_sub20.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+
+DESCRIPTION = "ROL 6 and ADD and SUB 0x20"
+TYPE = 'unsigned_int'
+TEST_1 = 650671921
+
+
+def hash(data):
+    val = 0
+    for i in data:
+        val = ((val << 6) | (val >> 26)) & 0xffffffff
+        val += i if i < 97 else i - 32
+        val &= 0xffffffff
+    return val