Hello,

We are looking for code breaking skills. The following was taken from reddit.comr/4a5e1/

Hint : Username of poster and subreddit name should give you a first clue. The actual message should give you a few more. Add some basic math to the mix and of you go.

Good Luck!

Subject: 9-45-2-10-43-3-0-7-4-0-18-6-14-15-0-7-49-26-23-5-4-7-14-13-26-2-1-6-4-6-1-14-7-47-27-0-28-3-5-3-37-18-0-11-1-23-1-3-1-16-3-37-14-6-2-14

Message:
277293-345-22-675220-1124-32-260673-49-6-674158-230-24-201993-119-7-588948-218-21-224359-165-27-650997-314-36-242044-111-15-667920-2349-16-221085-253-17-665268-1479-32-262478-180-5-670671-846-29-275113-7-17-669668-363-20-211913-135-5-624368-344-38-255203-215-30-648885-1956-34-202482-3-16-621429-697-17-209915-48-3-614274-115-13-223718-14-25-676875-780-41-280852-663-1-680180-1184-56-229870-27-27-618915-829-44-278128-15-2-665873-42-20-252989-167-27-673020-583-29-211652-26-3-633849-167-13-259801-65-3-652180-419-16-263847-98-18-647905-673-21-249990-134-3-634956-1317-9-299271-311-4-681411-1701-28-292778-34-8-675773-251-17-265023-94-29...
<snip>
....

H8H4zfZRojnUiOW1V/uCikqjZ/dF5AH68/OLNQI0cFveLgFW1nUIX2L56TTy5LjVEEzyISDH5eoE648QAzJRlRg=