import std.stdio,
       std.conv,
       std.string,
       std.range,
       std.algorithm;

void main()
{
    auto L = readln.strip.to!int;
    auto M = readln.strip.to!int;
    auto N = readln.strip.to!int;

    int ans;
    auto money = (100 * L + 25 * M + N) % 1000;
    foreach_reverse (coin; [1, 25, 100])
    {
        ans += money / coin;
        money %= coin;
    }
    ans.writeln;
}