menit = int(input())
hari = menit // 1440
sisa = menit % 1440
jam = sisa // 60
sisa = sisa % 60
menit_5 = sisa // 5
total = hari * 800000 + jam * 25000 + menit_5 * 1000
print(total)
bWVuaXQgPSBpbnQoaW5wdXQoKSkKCmhhcmkgPSBtZW5pdCAvLyAxNDQwCnNpc2EgPSBtZW5pdCAlIDE0NDAKCmphbSA9IHNpc2EgLy8gNjAKc2lzYSA9IHNpc2EgJSA2MAoKbWVuaXRfNSA9IHNpc2EgLy8gNQoKdG90YWwgPSBoYXJpICogODAwMDAwICsgamFtICogMjUwMDAgKyBtZW5pdF81ICogMTAwMAoKcHJpbnQodG90YWwp