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0.1,0.2,0.3,0.4,0.5
1,2,3,4,5
1.1,2.2,3.3,4.4,5.5
10,20,30,40,50
100,200,300,400,500

#!/usr/bin/env perl

...
print $x;

exit;

[
...
 [0.4   4 4.4  40 400]
 [0.5   5 5.5  50 500]
]