90
In vim's normal mode, the g prefix is used for a number of commands. Some commands go somewhere in the document, but other commands deal with file encodings and swapping upper/lower case letters.
ga- show character encoding10gg- go to line 10gg- go to line 1gH- start Select line modegr{char} - virtual replace N chars with {char}
What is the missing connection between all these commands?