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extern crate regex;
use std::io::{self, Read};
macro_rules! regex {
($re:expr) => {{
use regex::internal::ExecBuilder;
ExecBuilder::new($re).build().unwrap().into_regex()
}};
}
fn main() {
let mut seq = String::with_capacity(50 * (1 << 20));
io::stdin().read_to_string(&mut seq).unwrap();
let ilen = seq.len();
seq = regex!(">[^\n]*\n|\n").replace_all(&seq, "").into_owned();
println!("original: {}, replaced: {}", ilen, seq.len());
}