#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

void print(long long a, long long b) {
    string s;
    int j = 0;
    if(a)
    {while(a) {
        if(j == 3) {
            j = 0;
             s+= '.';}

        s+= '0' + a%10;
        a/= 10;
        j++;
    }
        reverse(s.begin(), s.end());
        cout << s;
    }
    else
        cout << 0;

    if(b) {
        cout << '.';
        if(b < 10)
            cout << 0 << b;
        else
            cout << b;
    }
}

int main()
{
    string s;
   cin >> s;
   // s = "a1b220.555c0.16d123.156.156.123.60d0.99e100.99";

    long long rub = 0;
    long long cop = 0;
    long long _buf1 = 0;
    long long _buf2 = 0;

    int j = 0;
    s+= 'a';

bool    flag = false;

    for(int i = 0; i < s.size(); i++) {
        if( ('a' <= s.at(i))  &&  (s.at(i) <= 'z')  ) {
            if(flag == 0  && _buf1 == 0) {
                rub += _buf2;
                _buf1 = 0;
                _buf2 = 0;
                continue;
            }

                flag = false;
            if(j == 2) {
                cop+= _buf2;
                rub+= _buf1;
                if(cop >= 100) {
                    rub++;
                    cop -= 100;
                }
                _buf1 = 0;
                _buf2 = 0;
            }
            else {
                rub+= (_buf1 * 1000) + _buf2;
                _buf1 = 0;
                _buf2 = 0;
            }
        }
        else if(s.at(i) == '.') {
            j=0;
            flag = 1;
            if(j == 4)
                j = 1;
            _buf1*= 1000;
            _buf1+= _buf2;
            _buf2 = 0;
        }
        else {
            if(flag) {
                j++;
            }

            _buf2*= 10;
            _buf2+= s.at(i) - '0';
        }

    }

    print(rub, cop);

    return 0;
}