Add a calculation function

Author: davidjlynn

calculation.py

@@ -0,0 +1,9 @@
+from hashlib import sha256
+
+x = 5
+y = 0 # We don't know what y should be yet
+
+while sha256(f'{x*y}'.encode()).hexdigest()[-1] != "0":
+    y += 1
+
+print(f'The solution is y = {y}')