m,n,s=map(int,input().split())
a=s/n #求得花圃原宽
b=m*a #求得花圃原面积
print('%.f'% b)
/**************************************************************
	Problem: 1323
	User: admin
	Language: Python
	Result: Accepted
	Time:92 ms
	Memory:34244 kb
****************************************************************/