C :

#include<stdio.h>
void main()
{
	int z,i,m,n,s;
	scanf("%d%d%d",&m,&n,&s);
	i=s/n;
	z=m*i;
	printf("%d\n",z);
 }  

C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){

	int n,m,s,b;
	cin>>n>>m>>s;
	b=s/m;
	cout<<n*b<<endl;


	return 0;
}

Python :

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)