Random String in Source

One strange thing I noticed while playing around…there is a strange line of code appearing in the body near the top (when I view page source in a browser), it’s not in the theme files…

<bte%nna!j$cf0"nv+%3{{a"!i{9)ip6/mq{rex33tn9a.etkn}kD5 r$74yom;)a4ntdw0`

I don’t know what that is. It has no end tag and seems very odd to me. I don’t know where it’s coming from or how to get rid of it.
It doesn’t seem to be doing anything, but wanted to see if it was something I should be alerted about.

If possibly I would like to remove it.

Thank you