A. Expression Solution

#include<bits/stdc++.h>

using namespace std;

int main(){

    int a,b,c;

    scanf("%d%d%d",&a,&b,&c);

    int mul=a*b*c;

    int muladd=a*(b+c);

    int addmul=(a+b)*c;

    int add=a+b+c;

    if (mul>=muladd && mul>=addmul && mul>=add)

        cout<<mul<<endl;

    else if (muladd>=mul && muladd>=addmul && muladd>=add)

        cout<<muladd<<endl;

    else if (add>=mul&&add>=muladd&&add>=addmul)

            cout<<add<<endl;

    else

        cout<<addmul<<endl;

    return 0;

}