[your code here]

[H. S. Teoh]

// Wraps long lines in standard input.
// Demonstrates D's powerful array manipulation facility and generic
// algorithms.

import std.algorithm;
import std.array;
import std.range;
import std.stdio;

void main() {
        int width = 80;

        foreach (line; stdin.byLine()) {
                while (line.length > width) {
                        // Find longest space-terminated prefix of line that
                        // fits in width, and wrap it there.
                        char[] fits = find(retro(line[0..width]), " ").source;
                        writeln(fits);
                        line = line[fits.length .. $];
                }
                writeln(line);
        }
}