#関数
hyakukouka = int(input());
nzyugokouka = int(input());
itikouka = int(input());
result = 0;

#1円処理
if itikouka >= 25:
	nzyugokouka = nzyugokouka + int(itikouka/25);
	itikouka = itikouka - 25 * int(itikouka/25);
#25円処理
if nzyugokouka >= 4:
	hyakukouka = hyakukouka + int(nzyugokouka/4);
	nzyugokouka = nzyugokouka - 4 * int(nzyugokouka/4);

#100円処理
if hyakukouka >= 10:
	hyakukouka = hyakukouka - 10 * int(hyakukouka/10);

#出力
result = itikouka + nzyugokouka +hyakukouka;
print(result);