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  1. #!/usr/bin/perl
  2. # 6M King
  3.  
  4. while (<>){
  5. s/\d+ \d+ (\d+) (\d+) (\d+) (\d+)/abs($1-$3)>abs($2-$4)?abs($1-$3):abs($2-$4)/e;
  6. }
Success #stdin #stdout 0s 4596KB
stdin
10 10 10 10 1 1
2 2 1 1 1 2
5 5 3 3 5 5
6 6 1 1 1 1
stdout
9
1
2
0