writeln Function while reading a Text File is printing appending text "before text" and "after text" at the same position

[BoQsc]

> C:\Users\vaida\Desktop\Associative Array Sorting> rdmd 
> testingGround.d
> 0.  The quick brown fox jumps over the lazy dog
> nonononoahahahaha Sphinx of black quartz, judge my vow.
> 2. # How vexingly quick daft zebras jump!
> 3. # The five boxing wizards jump quickly
> 4. # Maecenas consectetur risus a lacus sodales iaculis.
> 5. # Morbi sed tortor sollicitudin, pharetra massa egestas, 
> congue massa.
> 6. # Sed sit amet nisi at ligula ultrices posuere quis nec est.
> 7. # Mauris vel purus viverra, pellentesque elit id, consequat 
> felis.

Here you can see ". hahahahahahaha" and "nononono" and even 
lineNumber is being merged into the same position. Why is this 
happening and can this be simply resolved?


testingGround.d
> import std.stdio;
> import std.algorithm;
> 
> int lineNumber;
> void main(){
> 
> 	File exampleFile = File("exampleText.txt");
> 	lineNumber = 0;
> 	foreach(line; exampleFile.byLine){
> 		
> 		if (line == " Sphinx of black quartz, judge my vow.\u000D"){
> 			writeln(lineNumber, ". hahahahahahaha", line, "nononono");
> 			
> 		} else {
> 			writeln( lineNumber, ". ", line);
> 		}
> 		
> 		lineNumber++;
> 	}
> }

exampleText.txt
>  The quick brown fox jumps over the lazy dog
>  Sphinx of black quartz, judge my vow.
> # How vexingly quick daft zebras jump!
> # The five boxing wizards jump quickly
> # Maecenas consectetur risus a lacus sodales iaculis.
> # Morbi sed tortor sollicitudin, pharetra massa egestas, congue 
> massa.
> # Sed sit amet nisi at ligula ultrices posuere quis nec est.
> # Mauris vel purus viverra, pellentesque elit id, consequat 
> felis.