There is a gap between the output text and the added variable content.

Why is this the case?
How can I avoid this gap?

I tried this…

Version 1:

print "Your input was: ", "$input_line";

Version 2:

print "Your input was: ","$input_line";

If input-text was Hello the terminal-window writes:

Your input was: Hello
               ^

I try to give out a text and the text should be followed by an variable-content (here $input_line).

The problem is, that there is a gap (see this sign “^”) between the text and the variable-content.