sub RowSort {

    my($aa) = $a =~ /(\d+)\,(\d+)/;		 
    my($bb) = $b =~ /(\d+)\,(\d+)/;		 
	    
    $aa <=> $bb;	   
}


##</code><code>##

1,64,1.4.5,1.4.6,44642850,44642850,0,27348,10028,59188,1488095,761904.64
1,128,1.4.5,1.4.6,25337850,25337850,0,19236,10276,28196,844595,864865.28
1,256,1.4.5,1.4.6,13489200,13489200,0,17792,11372,17832,449640,920862.72
1,512,1.4.5,1.4.6,6996270,6996270,0,18084,16744,19124,233209,955224.064
1,1024,1.4.5,1.4.6,3557880,3557880,0,31528,20488,35188,118596,971538.432
2,64,1.4.5,1.4.6,44642850,44642850,0,25828,9548,40128,1488095,761904.64
2,128,1.4.5,1.4.6,25337850,25337850,0,27936,10796,28696,844595,864865.28
2,256,1.4.5,1.4.6,13489200,13489200,0,12852,10692,13332,449640,920862.72
2,512,1.4.5,1.4.6,6996270,6996270,0,17184,15904,18844,233209,955224.064
2,1024,1.4.5,1.4.6,3557880,3557880,0,34068,17948,36628,118596,971538.432

##</code><code>##

# result should be sorted:
1,64,1.4.5,1.4.6,44642850,44642850,0,27348,10028,59188,1488095,761904.64
2,64,1.4.5,1.4.6,44642850,44642850,0,25828,9548,40128,1488095,761904.64
1,128,1.4.5,1.4.6,25337850,25337850,0,19236,10276,28196,844595,864865.28
2,128,1.4.5,1.4.6,25337850,25337850,0,27936,10796,28696,844595,864865.28
1,256,1.4.5,1.4.6,13489200,13489200,0,17792,11372,17832,449640,920862.72
2,256,1.4.5,1.4.6,13489200,13489200,0,12852,10692,13332,449640,920862.72
1,512,1.4.5,1.4.6,6996270,6996270,0,18084,16744,19124,233209,955224.064
2,512,1.4.5,1.4.6,6996270,6996270,0,17184,15904,18844,233209,955224.064
1,1024,1.4.5,1.4.6,3557880,3557880,0,31528,20488,35188,118596,971538.432
2,1024,1.4.5,1.4.6,3557880,3557880,0,34068,17948,36628,118596,971538.432