power=int(input())
city=input()
standard=input()
tax=0

if(city=="Sofia"):
    if(power<=37):
        tax=power*1.43
    elif(38<=power<=55):
        tax=power*1.50
    else:
        tax=power*2.68
if(city=="Vidin"):
    if(power<=37):
        tax=power*1.34
    elif(38<=power<=55):
        tax=power*1.40
    else:
        tax=power*2.54
if(city=="Varna"):
    if(power<=37):
        tax=power*1.37
    elif(38<=power<=55):
        tax=power*1.40
    else:
        tax=power*2.57

if(standard=="Euro 4"):
    tax=tax-tax*0.15
elif(standard=="Euro 5"):
    tax=tax-tax*0.17
elif(standard=="Euro 6"):
    tax=tax-tax*0.2

print(f'{tax:.2f} lv')