#include<iostream>
#include<string>
#include<cmath>
using namespace std;
int main(void) {
    string information;
    std::getline(cin, information, 'E');
    int num = information.length();
    //11分区
    int score[10000][2] = { 0 };
    int j = 1;
    for (int i = 0; i < num;  i++) {
        if ((score[j][0] >=11 || score[j][1] >= 11) && abs(score[j][0] - score[j][1]) >= 2)j++;
        if (information[i] == 'W')score[j][0]++;
        if (information[i] == 'L')score[j][1]++;
    }
    for (int i = 1; i <= j; i++) {
        cout << score[i][0] << ':' << score[i][1] << endl;
    }
    cout << endl;
    //21分区
    int score_1[10000][2] = { 0 };
    j = 1;
    for (int i = 0; i < num; i++) {
        if ((score_1[j][0] >=21 || score_1[j][1] >= 21) && abs(score_1[j][0] - score_1[j][1]) >= 2)j++;
        if (information[i] == 'W')score_1[j][0]++;
        else if (information[i] == 'L')score_1[j][1]++;
    }
    for (int i = 1; i <= j; i++) {
        cout << score_1[i][0] << ':' << score_1[i][1] << endl;
    }
}