^start of line
\$the literal $ (3610 / 448 / 2416)
2the literal 2 (5010 / 628 / 3216)
athe literal a (9710 / 1418 / 6116) (case sensitive)
ythe literal y (12110 / 1718 / 7916) (case sensitive)
bthe literal b (9810 / 1428 / 6216) (case sensitive)
\$the literal $ (3610 / 448 / 2416)
.{56}any character (except for line terminators), repeated exactly 56 times
$end of line
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string