mmmhhh.... this is interesting nevertheless i don't understand the
solution of my problem, and i cannot even understand it's origin:
void main()
{
string s1 = "abcd";
s1 = s1[stride(s1,0)..1] ~ 'r' ~ s1[2..$];
writeln(s1);
}
why there is not way i cannot achive "arcd"?