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  1. or download this
    my $VALUE = "0\t" x 10; ## array of 0s and I having \t because I want 
+a delimited outputfile
chop($VALUE);
...
substr($VALUE, 2,2) =~ s/0/$signal/g; ## want to make changes at index
+ 2 and 3
print "Second statement: ",$VALUE,"\n";
  2. or download this
    ******Results:*******

First statement: 0    0    0    0    0    0    0    0    0    0    
Second statement: 0    0.5    0.845    0    0    0    0    0    0    0
+    0