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# In my above code, the data is concatenated as follows:
abc,2,3,4,5,6 
,7,5,2,1,6,2,3
...

#But expected output is :
abc,2,3,4,5,6,7,5,2,1,6,2,3,8,2,1,3,1,4

while(<FH>)
chomp;
{
# ...