\d{3}a digit, repeated exactly 3 times
\h+any horizontal whitespace character, repeated at least once
\h+any horizontal whitespace character, repeated at least once
\d{2}a digit, repeated exactly 2 times
:the literal : (5810 / 728 / 3A16)
\d{2}a digit, repeated exactly 2 times
:the literal : (5810 / 728 / 3A16)
\d{2}a digit, repeated exactly 2 times