using System;
class Program
{
static void Main() {
string s = "vb.net javascript php c c++ python c#";
int last_space_pos = s.LastIndexOf(" ");
Console.WriteLine(last_space_pos);
Console.WriteLine(s[last_space_pos - 1]);
Console.WriteLine(s[last_space_pos + 1]);
}
}
/*
run:
34
n
c
*/