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elken/script

Created August 15, 2016 22:27
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script
@a=split(/\s+/,<>);while(1){$a=@a[0]<=>@a[2];$b=@a[1]<=>@a[3];print((N,'',S)[$b+1].(W,'',E)[$a+1].$/);@a[2]+=$a;@a[3]+=$b;}
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