479A.cpp

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int a, b, c, arr[6];
    cin >> a >> b >> c;
    arr[0] = a+b+c;
    arr[1] = a*b*c;
    arr[2] = a+b*c;
    arr[3] = a*b+c;
    arr[4] = a*(b+c);
    arr[5] = (a+b)*c;
    
    sort(arr, arr+6);
    cout << arr[5] << endl;
    return 0;
}

// 1+2*3=7
// 1*(2+3)=5
// 1*2*3=6
// (1+2)*3=9