function main(input = '') {
  if (!input) throw Error;

  let lines = input.split('\n');
  let [num100, num25, num1] = lines.map((val) => parseInt(val));

  let moneyAccount = num100 * 100 + num25 * 25 + num1;

  let numCoins = 0;

  moneyAccount %= 1000;

  numCoins += Math.floor(moneyAccount / 100);
  moneyAccount %= 100;

  numCoins += Math.floor(moneyAccount / 25);
  moneyAccount %= 25;

  numCoins += moneyAccount;

  return `${numCoins}`;
}

const { readFileSync, existsSync } = require('fs');
const stdin = '/dev/stdin';

if (existsSync(stdin)) {
  const input = readFileSync(stdin, 'utf8');
  console.log(main(input));
}

module.exports = main;