include <iostream>

include <cstdio>

include <cstring>

include <cmath>

include <map>

include <string>

include <vector>

include <set>

include <queue>

include <stack>

include <algorithm>

using namespace std;

int main()
{
char brace;
while (cin.get(brace))
{
if(brace=='\n')
break;
int num=0;
if(brace==')'){
num++;
}
int max=0;
if(num>max){
max=num;
}
int ans=1;
for(int i=1;i<=max;++i){
ans*=i;
}
cout<<ans<<endl;
}
system("pause");
return 0;
}

#include <iostream>
#include <cstdio>
#include <cstring>
#include <cmath>
#include <map>
#include <string>
#include <vector>
#include <set>
#include <queue>
#include <stack>
#include <algorithm>
using namespace std;

int main()
{
    char brace;
    while (cin.get(brace))
    {
        if(brace=='\n')
            break;
        int num=0;
        if(brace==')'){
            num++;
        }
        int max=0;
        if(num>max){
            max=num;
        }
        int ans=1;
        for(int i=1;i<=max;++i){
            ans*=i;
        }
        cout<<ans<<endl;
    }
    system("pause");
    return 0;
}