<?php
//100円硬貨
$l = trim(fgets(STDIN) * 100);
//25円硬貨
$m = trim(fgets(STDIN) * 25);
//1円硬貨
$n = trim(fgets(STDIN));

//合計金額を算出
$totalPrice = $l + $m + $n;

//100円硬貨の枚数を取得
$totalPrice %= 1000;
$lCoin = floor($totalPrice / 100);

//25円硬貨の枚数を取得
$totalPrice %= 100;
$mCoin = floor($totalPrice / 25);

//1円硬貨の枚数を取得
$totalPrice %= 25;

//出力
echo($mCoin + $lCoin + $totalPrice);