module main;

import std;

void main()
{
	auto L = readln.chomp.to!int;
	auto M = readln.chomp.to!int;
	auto N = readln.chomp.to!int;
	M += N / 25;
	N %= 25;
	L += M / 4;
	M %= 4;
	L %= 10;
	writeln(L + M + N);
}