let input = [

    '185'

];


let print = this.print || console.log;
let gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);


let inputOne = gets();


let sum1 = Number(inputOne[0]) * Number(inputOne[1]) * Number(inputOne[2]);

let sum2 = Number(inputOne[0]) + Number(inputOne[1]) + Number(inputOne[2]);

let sum3 = Number(inputOne[0]) + Number(inputOne[1]) * Number(inputOne[2]);





if (sum1 >= sum2 && sum1 >= sum3) {

print(sum1);

} else if (sum1 <= sum2 && sum3 <= sum2) {

    print(sum2);

} else if (sum2 <= sum3 && sum1 <= sum3) {

print(sum3);

}