[백준][Python] 4796번 캠핑

l=2
p=3
v=4
i = 0
while True:
    days = 0
    l,p,v = map(int,input().split())
    if l+p+v ==0:
        break
    while True:
        
        days += l
        remain = p - l
        v = v - l - remain
        if v <=0 :
            break
        
        if v <= l:
            days+= v
            break
    i+=1        
    print("Case {}: {}".format(i,days))