#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);


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;
}