process.stdin.resume();
process.stdin.setEncoding('utf8');

process.stdin.on('data', function (chunk) {
    var str = chunk.toString().split('\n')[0];
    var ans = calc(str);
    for(var i=1; i<str.length; i++) {
        var l = str.slice(0,i);
        var r = str.slice(i);
        var tmp = r + l;
        if(tmp[0] == '+' || tmp[0] == '-') continue;
        if(tmp[tmp.length-1] == '+' || tmp[tmp.length-1] == '-') continue;
        ans = Math.max(ans, calc(tmp));
    }
    console.log(ans);
});

function calc(str) {
    var target = "";
    var start = 0;
    for(var i=start; i<=str.length; i++) {
        if(i == str.length) {
            target += Number(str.slice(start));
            break;
        }
        if(str[i] == '+' || str[i] == '-') {
            target += Number(str.slice(start,i));
            target += str[i];
            start = i+1;
        }
    }
    return eval(target);
}