#include <cstdio>
#include <iostream>
#include <iomanip>
#include <cmath>
#include <algorithm>
using namespace std;

int main(){
   int n=10000;

   char *s;
cin>>s;


n=int(sizeof(s)-1);

//cout<<n;
int *x;
x= new int[n];

for (int i=0;i<n;i++){
    x[i]=0;
}

if(s[n-1]=='o'){
    x[n-1]=1;
}

for (int i=n-2;i>=0;i--){
    x[i]=x[i+1];
   if(s[i]=='o'){
       x[i]+=1;
   }
}

for(int i=0;i<n;i++){
   
    int count=100;
    int surv =0;
    for(int j=i;j<n;j++){

        if(s[j]=='o'){
           
            surv +=1;
        }
    }
    count=n-i;
    if(count==0){
    return 0;
    }
    float ans =1.0*surv/count;
    cout<<fixed << setprecision(10)<<ans<<"\n";
}
/**/
    return 0;
}