Why does this not work?

[TheDGuy via Digitalmars-d-learn]

On Friday, 1 January 2016 at 14:29:34 UTC, Tobi G. wrote:
> On Friday, 1 January 2016 at 14:20:26 UTC, Tobi G. wrote:
>> The solution is that readln() returns a string that also 
>> contains the newline
>> this can be solved by easily stripping the newline off
>>
>> import std.string;
>>
>> int i = to!int(input.strip);
>
> Sorry my bad english.. i wrote solution but meant problem

Thank you very much! That helped me alot. It is kind of hard if 
you don't have the background knowledge...