#include <iostream>
using namespace std;
int main()
{
int A[20], i, ans, min[3] = {2147483647, 2147483647, 2147483647};
for (i = 0; i <= 20; i++)
A[i] = rand() % 50;
for (i = 0; i <= 20; i++)
if (min[1] > A[i])
min[1] = A[i];
for (i = 0; i <= 20; i++)
if (min[2] > A[i] && A[i] > min[1])
min[2] = A[i];
for (i = 0; i <= 20; i++)
if (min[3] > A[i] && A[i] > min[2])
min[3] = A[i];
ans = min[1] * min[2] * min[3];
cout << ans;
return 0;
}