#include <iostream>
#include <string>
#include <cmath>
using namespace std;

const int MAXN = 10000;

int w11[MAXN], l11[MAXN];

int w21[MAXN], l21[MAXN];

int main()
{
    string s;

    int cnt11 = 0, cnt21 = 0;

    int nowW11 = 0, nowL11 = 0;
    int nowW21 = 0, nowL21 = 0;
    bool stop = false;

    while (cin >> s && !stop)
    {

        for (char ch : s)
        {
            if (ch == 'E')
            {
                stop = true;
                break;
            }

            if (ch == 'W')
            {
                nowW11++;
                nowW21++;
            }

            else if (ch == 'L')
            {
                nowL11++;
                nowL21++;
            }

            if ((nowW11 >= 11 || nowL11 >= 11) && abs(nowW11 - nowL11) >= 2)
            {
                w11[cnt11] = nowW11;
                l11[cnt11] = nowL11;
                cnt11++;

                nowW11 = 0;
                nowL11 = 0;
            }

            if ((nowW21 >= 21 || nowL21 >= 21) && abs(nowW21 - nowL21) >= 2)
            {
                w21[cnt21] = nowW21;
                l21[cnt21] = nowL21;
                cnt21++;
                nowW21 = 0;
                nowL21 = 0;
            }
        }
    }

    w11[cnt11] = nowW11;
    l11[cnt11] = nowL11;
    cnt11++;
    w21[cnt21] = nowW21;
    l21[cnt21] = nowL21;
    cnt21++;

    for (int i = 0; i < cnt11; i++)
    {
        cout << w11[i] << ":" << l11[i] << endl;
    }
    cout << endl;

    for (int i = 0; i < cnt21; i++)
    {
        cout << w21[i] << ":" << l21[i] << endl;
    }

    return 0;
}