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  1. or download this
    use strict;
    use warnings;
    ...
    R00010: 00500: C01083 => C00031
    R00013: 00630: C00048 => C01146
    R00013: 01100: C00048 <=> C01146
    
  2. or download this
    R00005 - =>
    R00005 - =>
    ...
    R00010 - =>
    R00013 - =>
    R00013 - <=>
    
  3. or download this
    /^([^:]+).+\s+([<=>]+)\s+/
     ^   ^    ^      ^
    ...
     |   |    + - Keep going, matching any character except \n
     |   + - Capture characters that are not :
     + - Start at the beginning