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0 4 5 ... 5 4 0
A X 79 54 53 B Y 81 54 50 C Y 83 51 52
my @points = ( {A=>A, X=>79.620, Y=>54.720, Z=>53.034}, ... print "\n"; }
$d = sqrt(($rx1 - $rx2)**2 + ($ry1 - $ry2)**2 + ($rz1 - $rz2)**2);
A B C ... C 5 4 0