use proconio::input;

fn main(){
  input!{
    mut hand:usize,
    mut twenty:usize,
    mut one:usize,
  }
  let mut count =0;
  twenty += one / 25;
  count += one % 25;
  hand += twenty / 4;
  count += twenty % 4;
  count += hand % 10;
  println!("{}",count);
}