#include <bits/stdc++.h>

using namespace std;

int main() {
    char result[200] = {' '};
    int i = 0;
    while (true) {
        cin >> result[i];
        if (result[i] == 'E')break;
        i++;
    }
    //11分制
    int k = 0;
    int w = 0, l = 0;
    while (k < i) {
        if (result[k] == 'L') l++;
        if (result[k] == 'W') w++;
        if ((w % 11 == 0 && w > 0) || (l % 11 == 0 && l > 0)) {
            cout << w << ":" << l << endl;
            w = 0;
            l = 0;
        }
        k++;
    }
    //最后一下
    if (w > 0 || l > 0) cout << w << ":" << l << endl;

    cout << endl;

    //21分制
    k = 0;
    w = 0, l = 0;
    while (k < i) {
        if (result[k] == 'L') l++;
        if (result[k] == 'W') w++;
        if ((w % 21 == 0 && w > 0) || (l % 21 == 0 && l > 0)) {
            cout << w << ":" << l << endl;
            w = 0;
            l = 0;
        }
        k++;
    }
    //最后一下
    if (w > 0 || l > 0) cout << w << ":" << l << endl;
    return 0;
}