Repainting

nailon=int(input())
paint=int(input())
abc=int(input())
hours=int(input())
expenses= (nailon+2)*1.50+paint*1.10*14.50+abc*5+0.40
total_expenses=expenses+hours*expenses*0.30
print('Total expenses:', '%.2f'%total_expenses, 'lv.')