Solution: Print Part of a String

import std.stdio;
import std.string;
void PrintPart() {
    string line = "this line has five words";
    ptrdiff_t first_e = indexOf(line, 'e');
    if (first_e == -1) {
        writeln("There is no letter e in this line.");
    } else {
        ptrdiff_t last_e = lastIndexOf(line, 'e');
        writeln(line[first_e .. last_e + 1]);
    }
}