/* eslint no-console: "off" */

let assert = require("assert");

function tokens(s) {
    return s.trim().split(/\s+/);
}

function div_ceil(a, b) {
    return Math.trunc(a/b) + ((((a<0)^(b>0)) && a%b) ? 1 : 0);
}

function div_floor(a, b) {
    return Math.trunc(a/b) + ((((a>0)^(b>0)) && a%b) ? 1 : 0);
}

function digits(n) {
    assert(n >= 0);

    if(n == 0) return [0];

    let res = [];
    while(n > 0) {
        res.push(n % 10);
        n = div_floor(n, 10);
    }
    return res;
}

function TO_INT(s) {
    return parseInt(s, 10);
}

function Main(input) {
    let [L, M, N] = tokens(input).map(s => TO_INT(s));

    let ans = 0;

    let val = 100*L + 25*M + N;
    val %= 1000;

    ans += div_floor(val, 100);
    val %= 100;
    ans += div_floor(val, 25);
    val %= 25;
    ans += val;

    console.log(ans);
}

Main(require("fs").readFileSync("/dev/stdin", "utf8"));