4796번: 캠핑

#include <cstdio>

int main()

{

int l, p, v, day, count = 1;

while (1)

{

scanf("%d %d %d", &l, &p, &v);

if (l == 0) return 1;

day = 0;

while (v > 0)

{

if (v >= l)

day += l;

else

day += v;

v -= p;

}

printf("Case %d: %d\n", count++, day);

}

}